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Finding the Fourth Proportional to 342,404.52, 513,753.82 and 132,190.08

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Solution

The fourth proportional to 342,404.52, 513,753.82 and 132,190.08 is: 198,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,404.52 : 513,753.82 = 132,190.08 : x
  2. Step 2: Convert to fraction form
    342,404.52/513,753.82 = 132,190.08/x
  3. Step 3: Cross multiply
    342,404.52x = 513,753.82 × 132,190.08
  4. Step 4: Simplify right side
    342,404.52x = 67,913,158,566.11
  5. Step 5: Solve for x
    x = 67,913,158,566.11/342,404.52
  6. Step 6: Final answer
    x = 198,341.89

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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.