Percent composition question?

in the reaction:
2Na3PO4⋅12H20 +3BaCl2⋅2H2O--> Ba3(PO4)2 +6NaCl +30H2O

if 0.1514g of the Ba3(PO4)2 precipitate is produced from the reaction what is the percent composition of the salt mixtture of Na3PO4⋅12H20. and BaCl2⋅2H2O
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