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Finding the Fourth Proportional to 267.17, 400.74 and 93.92

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Solution

The fourth proportional to 267.17, 400.74 and 93.92 is: 140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.17 : 400.74 = 93.92 : x
  2. Step 2: Convert to fraction form
    267.17/400.74 = 93.92/x
  3. Step 3: Cross multiply
    267.17x = 400.74 × 93.92
  4. Step 4: Simplify right side
    267.17x = 37,637.50
  5. Step 5: Solve for x
    x = 37,637.50/267.17
  6. Step 6: Final answer
    x = 140.87

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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.