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Finding the Fourth Proportional to 167.92, 252.15 and 166.66

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Solution

The fourth proportional to 167.92, 252.15 and 166.66 is: 250.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.92 : 252.15 = 166.66 : x
  2. Step 2: Convert to fraction form
    167.92/252.15 = 166.66/x
  3. Step 3: Cross multiply
    167.92x = 252.15 × 166.66
  4. Step 4: Simplify right side
    167.92x = 42,023.32
  5. Step 5: Solve for x
    x = 42,023.32/167.92
  6. Step 6: Final answer
    x = 250.26

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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.