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Finding the Fourth Proportional to 67,469.76, 93,101.20 and 39,169.92

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Solution

The fourth proportional to 67,469.76, 93,101.20 and 39,169.92 is: 54,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,469.76 : 93,101.20 = 39,169.92 : x
  2. Step 2: Convert to fraction form
    67,469.76/93,101.20 = 39,169.92/x
  3. Step 3: Cross multiply
    67,469.76x = 93,101.20 × 39,169.92
  4. Step 4: Simplify right side
    67,469.76x = 3,646,766,555.90
  5. Step 5: Solve for x
    x = 3,646,766,555.90/67,469.76
  6. Step 6: Final answer
    x = 54,050.39

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Why These Related Problems?

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