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Finding the Fourth Proportional to 267.62, 402.66 and 159.48

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Solution

The fourth proportional to 267.62, 402.66 and 159.48 is: 239.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.62 : 402.66 = 159.48 : x
  2. Step 2: Convert to fraction form
    267.62/402.66 = 159.48/x
  3. Step 3: Cross multiply
    267.62x = 402.66 × 159.48
  4. Step 4: Simplify right side
    267.62x = 64,216.22
  5. Step 5: Solve for x
    x = 64,216.22/267.62
  6. Step 6: Final answer
    x = 239.95

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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.