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Finding the Fourth Proportional to 95,446, 131,711.12 and 53,007.20

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Solution

The fourth proportional to 95,446, 131,711.12 and 53,007.20 is: 73,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,446 : 131,711.12 = 53,007.20 : x
  2. Step 2: Convert to fraction form
    95,446/131,711.12 = 53,007.20/x
  3. Step 3: Cross multiply
    95,446x = 131,711.12 × 53,007.20
  4. Step 4: Simplify right side
    95,446x = 6,981,637,680.06
  5. Step 5: Solve for x
    x = 6,981,637,680.06/95,446
  6. Step 6: Final answer
    x = 73,147.51

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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.