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Finding the Fourth Proportional to 267,103.90, 400,654.34 and 67,423.47

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Solution

The fourth proportional to 267,103.90, 400,654.34 and 67,423.47 is: 101,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,103.90 : 400,654.34 = 67,423.47 : x
  2. Step 2: Convert to fraction form
    267,103.90/400,654.34 = 67,423.47/x
  3. Step 3: Cross multiply
    267,103.90x = 400,654.34 × 67,423.47
  4. Step 4: Simplify right side
    267,103.90x = 27,013,505,873.36
  5. Step 5: Solve for x
    x = 27,013,505,873.36/267,103.90
  6. Step 6: Final answer
    x = 101,134.82

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1.5x scale

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.