The phrase "a large proportion in" is correct and usable in written English.
It can be used when discussing the extent or amount of something within a specific context or group.
Example: "A large proportion in the survey indicated that they preferred online shopping over traditional retail."
Alternatives: "a significant share of" or "a considerable amount in".
The products are all made in the Far East, and a large proportion in China.
The Aspi report highlighted the 250 million people living in the river deltas of Asia, a large proportion in the Ganges Brahmaputra deltas where they were at "extreme risk" from rising sea levels.
Low permeability reserves occupy a large proportion in the remaining reserves all over the world.
When communication range is 100, these vehicles take a large proportion in the biggest CC.
Building energy consumption accounts for a large proportion in the total social energy consumption and solar energy plays an important role in the building renewable energy system.
The humic gas from Xujiahe Formation occupies a large proportion in blocks of Da'anzhai Member which are favorable for intrusion, accumulation and preservation of Xujiahe Formation natural gas, whereas for blocks without these conditions, natural gas is often associated gas.
By March 1930 more than one-half of the peasantry (a larger proportion in the agriculturally rich southwestern region of the Soviet Union) had been forced to join collective farms.
Generally, as the formation depth increases, natural gas makes up a larger proportion in deep petroleum and overtakes liquid hydrocarbon as the prevailing type of petroleum resources.
There are a few studies in the literature with lower reported sensitivities than expected, this being attributed to a larger proportion in their study sample of cholesteatoma less than 3 mm in size [17, 29].
When tV rises to 2.0 nm, the strain-free bulk energy and strain energy increase, which occupy a larger proportion in ET than in Eint. ET cannot be reduced by forming the coherent interface.
A larger proportion in Category II had abnormal morphology relative to Category I (67% v 42%, p = 0.4); this difference was not statistically significant.
