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Finding the Fourth Proportional to 416,909.12, 625,357.07 and 132,595.56

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Solution

The fourth proportional to 416,909.12, 625,357.07 and 132,595.56 is: 198,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,909.12 : 625,357.07 = 132,595.56 : x
  2. Step 2: Convert to fraction form
    416,909.12/625,357.07 = 132,595.56/x
  3. Step 3: Cross multiply
    416,909.12x = 625,357.07 × 132,595.56
  4. Step 4: Simplify right side
    416,909.12x = 82,919,570,896.61
  5. Step 5: Solve for x
    x = 82,919,570,896.61/416,909.12
  6. Step 6: Final answer
    x = 198,891.24

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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.