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Finding the Fourth Proportional to 267,419.52, 400,910.40 and 134,138.88

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Solution

The fourth proportional to 267,419.52, 400,910.40 and 134,138.88 is: 201,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,419.52 : 400,910.40 = 134,138.88 : x
  2. Step 2: Convert to fraction form
    267,419.52/400,910.40 = 134,138.88/x
  3. Step 3: Cross multiply
    267,419.52x = 400,910.40 × 134,138.88
  4. Step 4: Simplify right side
    267,419.52x = 53,777,672,036.35
  5. Step 5: Solve for x
    x = 53,777,672,036.35/267,419.52
  6. Step 6: Final answer
    x = 201,098.53

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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.