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Finding the Fourth Proportional to 447,757.44, 671,478.08 and 132,129.92

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Solution

The fourth proportional to 447,757.44, 671,478.08 and 132,129.92 is: 198,148.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,757.44 : 671,478.08 = 132,129.92 : x
  2. Step 2: Convert to fraction form
    447,757.44/671,478.08 = 132,129.92/x
  3. Step 3: Cross multiply
    447,757.44x = 671,478.08 × 132,129.92
  4. Step 4: Simplify right side
    447,757.44x = 88,722,344,992.15
  5. Step 5: Solve for x
    x = 88,722,344,992.15/447,757.44
  6. Step 6: Final answer
    x = 198,148.23

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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.