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Finding the Fourth Proportional to 62,375.31, 85,861.02 and 54,403.68

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Solution

The fourth proportional to 62,375.31, 85,861.02 and 54,403.68 is: 74,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,375.31 : 85,861.02 = 54,403.68 : x
  2. Step 2: Convert to fraction form
    62,375.31/85,861.02 = 54,403.68/x
  3. Step 3: Cross multiply
    62,375.31x = 85,861.02 × 54,403.68
  4. Step 4: Simplify right side
    62,375.31x = 4,671,155,456.55
  5. Step 5: Solve for x
    x = 4,671,155,456.55/62,375.31
  6. Step 6: Final answer
    x = 74,887.89

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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.