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Finding the Fourth Proportional to 62,778.57, 94,167.86 and 39,421.41

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Solution

The fourth proportional to 62,778.57, 94,167.86 and 39,421.41 is: 59,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,778.57 : 94,167.86 = 39,421.41 : x
  2. Step 2: Convert to fraction form
    62,778.57/94,167.86 = 39,421.41/x
  3. Step 3: Cross multiply
    62,778.57x = 94,167.86 × 39,421.41
  4. Step 4: Simplify right side
    62,778.57x = 3,712,229,620.78
  5. Step 5: Solve for x
    x = 3,712,229,620.78/62,778.57
  6. Step 6: Final answer
    x = 59,132.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.