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Finding the Fourth Proportional to 159,753.32, 220,470.28 and 91,792.29

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Solution

The fourth proportional to 159,753.32, 220,470.28 and 91,792.29 is: 126,679.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,753.32 : 220,470.28 = 91,792.29 : x
  2. Step 2: Convert to fraction form
    159,753.32/220,470.28 = 91,792.29/x
  3. Step 3: Cross multiply
    159,753.32x = 220,470.28 × 91,792.29
  4. Step 4: Simplify right side
    159,753.32x = 20,237,472,475.42
  5. Step 5: Solve for x
    x = 20,237,472,475.42/159,753.32
  6. Step 6: Final answer
    x = 126,679.51

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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.