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Finding the Fourth Proportional to 267,154.66, 400,614.54 and 80,122.42

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Solution

The fourth proportional to 267,154.66, 400,614.54 and 80,122.42 is: 120,148.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,154.66 : 400,614.54 = 80,122.42 : x
  2. Step 2: Convert to fraction form
    267,154.66/400,614.54 = 80,122.42/x
  3. Step 3: Cross multiply
    267,154.66x = 400,614.54 × 80,122.42
  4. Step 4: Simplify right side
    267,154.66x = 32,098,206,431.99
  5. Step 5: Solve for x
    x = 32,098,206,431.99/267,154.66
  6. Step 6: Final answer
    x = 120,148.41

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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.