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Finding the Fourth Proportional to 68,952,658.89, 95,155,402.68 and 38,013,935.34

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Solution

The fourth proportional to 68,952,658.89, 95,155,402.68 and 38,013,935.34 is: 52,459,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,952,658.89 : 95,155,402.68 = 38,013,935.34 : x
  2. Step 2: Convert to fraction form
    68,952,658.89/95,155,402.68 = 38,013,935.34/x
  3. Step 3: Cross multiply
    68,952,658.89x = 95,155,402.68 × 38,013,935.34
  4. Step 4: Simplify right side
    68,952,658.89x = 3,617,231,324,729,183.50
  5. Step 5: Solve for x
    x = 3,617,231,324,729,183.50/68,952,658.89
  6. Step 6: Final answer
    x = 52,459,635.10

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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.