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Finding the Fourth Proportional to 95,446.62, 131,720.31 and 53,005.50

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Solution

The fourth proportional to 95,446.62, 131,720.31 and 53,005.50 is: 73,149.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,446.62 : 131,720.31 = 53,005.50 : x
  2. Step 2: Convert to fraction form
    95,446.62/131,720.31 = 53,005.50/x
  3. Step 3: Cross multiply
    95,446.62x = 131,720.31 × 53,005.50
  4. Step 4: Simplify right side
    95,446.62x = 6,981,900,891.71
  5. Step 5: Solve for x
    x = 6,981,900,891.71/95,446.62
  6. Step 6: Final answer
    x = 73,149.80

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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.