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Finding the Fourth Proportional to 445,049.28, 667,494.15 and 125,124.42

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Solution

The fourth proportional to 445,049.28, 667,494.15 and 125,124.42 is: 187,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,049.28 : 667,494.15 = 125,124.42 : x
  2. Step 2: Convert to fraction form
    445,049.28/667,494.15 = 125,124.42/x
  3. Step 3: Cross multiply
    445,049.28x = 667,494.15 × 125,124.42
  4. Step 4: Simplify right side
    445,049.28x = 83,519,818,372.14
  5. Step 5: Solve for x
    x = 83,519,818,372.14/445,049.28
  6. Step 6: Final answer
    x = 187,664.20

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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.