SSAS : Multicurrency Problem (Part III)

I wrote two blogposts about the multicurrency problem in SSAS. The first blogpost (Part I) was about the multicurrency solution and is mainly inspired by the book of "Expert Cube Development with SQL Server 2008 Analysis Services" by Chris Webb, Alberto Ferrari and Marco Russo. In the second blogpost (Part II) further improvements were implemented. In this blogpost I'll bring the solution a step further.