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Finding the Fourth Proportional to 267,398.42, 400,972.28 and 155,110.55

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Solution

The fourth proportional to 267,398.42, 400,972.28 and 155,110.55 is: 232,593.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,398.42 : 400,972.28 = 155,110.55 : x
  2. Step 2: Convert to fraction form
    267,398.42/400,972.28 = 155,110.55/x
  3. Step 3: Cross multiply
    267,398.42x = 400,972.28 × 155,110.55
  4. Step 4: Simplify right side
    267,398.42x = 62,195,028,105.14
  5. Step 5: Solve for x
    x = 62,195,028,105.14/267,398.42
  6. Step 6: Final answer
    x = 232,593.11

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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.