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Finding the Fourth Proportional to 66,404,593.72, 91,638,461.62 and 37,037,819.14

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Solution

The fourth proportional to 66,404,593.72, 91,638,461.62 and 37,037,819.14 is: 51,112,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,404,593.72 : 91,638,461.62 = 37,037,819.14 : x
  2. Step 2: Convert to fraction form
    66,404,593.72/91,638,461.62 = 37,037,819.14/x
  3. Step 3: Cross multiply
    66,404,593.72x = 91,638,461.62 × 37,037,819.14
  4. Step 4: Simplify right side
    66,404,593.72x = 3,394,088,767,643,324.50
  5. Step 5: Solve for x
    x = 3,394,088,767,643,324.50/66,404,593.72
  6. Step 6: Final answer
    x = 51,112,258.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.