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Finding the Fourth Proportional to 95,332, 142,905.04 and 45,398.76

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Solution

The fourth proportional to 95,332, 142,905.04 and 45,398.76 is: 68,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,332 : 142,905.04 = 45,398.76 : x
  2. Step 2: Convert to fraction form
    95,332/142,905.04 = 45,398.76/x
  3. Step 3: Cross multiply
    95,332x = 142,905.04 × 45,398.76
  4. Step 4: Simplify right side
    95,332x = 6,487,711,613.75
  5. Step 5: Solve for x
    x = 6,487,711,613.75/95,332
  6. Step 6: Final answer
    x = 68,053.87

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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.