"of the same amount" is correct and can be used in written English.
Example sentence: I had two cups of coffee, each of the same amount.
Recurring bills of the same amount can be scheduled to be sent automatically.
Another prize of the same amount is intended to be given to an imprisoned writer.
Pete would also receive paternity benefit of the same amount for two weeks.
People generally prefer an immediate reward to a delayed reward of the same amount.
Many years ago I learned one secret of eliminating hangovers -- daily drinking of the same amount and kind.
He stood to collect another bonus of the same amount if he stayed with Nortel through Tuesday, July 31.
Monthly payments on a conforming loan of the same amount, at 6percentt, would be $4,371, a $479 difference.
He listed a purchase of the same amount of Novell stock on Aug. 10 and sold it the next day.
Families of troops who died while on stop-loss are also eligible for compensation, of the same amount.
Ingestion of the same amount of RGE failed to offer any meaningful effect on the same model of malignancy.
Revolving loans, which include credit cards, increased $2.2 billion in August, erasing a July decline of the same amount.
