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Finding the Fourth Proportional to 67,397,871.14, 92,979,520.08 and 39,506,441.30

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Solution

The fourth proportional to 67,397,871.14, 92,979,520.08 and 39,506,441.30 is: 54,501,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,397,871.14 : 92,979,520.08 = 39,506,441.30 : x
  2. Step 2: Convert to fraction form
    67,397,871.14/92,979,520.08 = 39,506,441.30/x
  3. Step 3: Cross multiply
    67,397,871.14x = 92,979,520.08 × 39,506,441.30
  4. Step 4: Simplify right side
    67,397,871.14x = 3,673,289,952,142,691
  5. Step 5: Solve for x
    x = 3,673,289,952,142,691/67,397,871.14
  6. Step 6: Final answer
    x = 54,501,572.38

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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.