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Finding the Fourth Proportional to 267,711.11, 401,404.87 and 125,587.55

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Solution

The fourth proportional to 267,711.11, 401,404.87 and 125,587.55 is: 188,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,711.11 : 401,404.87 = 125,587.55 : x
  2. Step 2: Convert to fraction form
    267,711.11/401,404.87 = 125,587.55/x
  3. Step 3: Cross multiply
    267,711.11x = 401,404.87 × 125,587.55
  4. Step 4: Simplify right side
    267,711.11x = 50,411,451,860.38
  5. Step 5: Solve for x
    x = 50,411,451,860.38/267,711.11
  6. Step 6: Final answer
    x = 188,305.42

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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.