Currency Field Type Not Behaving Like Currency

We don't include zeros at the end of currency values when passing them to a Marketo field set to the "currency" type. I was expecting the currency field to add zeros to the end of values as necessary but it does not. Is there a way to do this?

The following discussion did not have a conclusive solution:
https://community.marketo.com/MarketoDiscussionDetail?id=90650000000PWddAAG