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Finding the Fourth Proportional to 440,644.32, 660,965.13 and 125,101.44

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Solution

The fourth proportional to 440,644.32, 660,965.13 and 125,101.44 is: 187,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,644.32 : 660,965.13 = 125,101.44 : x
  2. Step 2: Convert to fraction form
    440,644.32/660,965.13 = 125,101.44/x
  3. Step 3: Cross multiply
    440,644.32x = 660,965.13 × 125,101.44
  4. Step 4: Simplify right side
    440,644.32x = 82,687,689,552.79
  5. Step 5: Solve for x
    x = 82,687,689,552.79/440,644.32
  6. Step 6: Final answer
    x = 187,651.78

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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.