problem reversing a multiple account receipt

We have a receipt for an order with a multiple account distribution that we want to reverse, but cannot.  The problem appears to be that when the total amount received, $164.75, was distributed, it rounded the not vouchered amount up for both distributions, for a total of $164.76:

   

Account Number	Distributed Percentage	Distributed Amount	Distributed Quantity	Quantity Received	Quantity Not Vouchered	Amount Received	Amount Not Vouchered
40150310.503600	50	82.00	2.5	2.5	2.5	82.00	82.38
40150110.503600	50	82.75	2.5	2.5	2.5	82.75	82.38

Does anyone know of a way to work around this?  There is an Oracle bug out on the problem, but no fix.