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Finding the Fourth Proportional to 42,442,207.70, 63,663,311.55 and 42,442,207.70

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Solution

The fourth proportional to 42,442,207.70, 63,663,311.55 and 42,442,207.70 is: 63,663,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,442,207.70 : 63,663,311.55 = 42,442,207.70 : x
  2. Step 2: Convert to fraction form
    42,442,207.70/63,663,311.55 = 42,442,207.70/x
  3. Step 3: Cross multiply
    42,442,207.70x = 63,663,311.55 × 42,442,207.70
  4. Step 4: Simplify right side
    42,442,207.70x = 2,702,011,491,674,909
  5. Step 5: Solve for x
    x = 2,702,011,491,674,909/42,442,207.70
  6. Step 6: Final answer
    x = 63,663,311.55

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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.