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Finding the Fourth Proportional to 67,694,502.40, 101,541,753.60 and 64,745,843.20

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Solution

The fourth proportional to 67,694,502.40, 101,541,753.60 and 64,745,843.20 is: 97,118,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,694,502.40 : 101,541,753.60 = 64,745,843.20 : x
  2. Step 2: Convert to fraction form
    67,694,502.40/101,541,753.60 = 64,745,843.20/x
  3. Step 3: Cross multiply
    67,694,502.40x = 101,541,753.60 × 64,745,843.20
  4. Step 4: Simplify right side
    67,694,502.40x = 6,574,406,456,838,635
  5. Step 5: Solve for x
    x = 6,574,406,456,838,635/67,694,502.40
  6. Step 6: Final answer
    x = 97,118,764.80

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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.