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Finding the Fourth Proportional to 167.52, 251.14 and 118.76

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Solution

The fourth proportional to 167.52, 251.14 and 118.76 is: 178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.52 : 251.14 = 118.76 : x
  2. Step 2: Convert to fraction form
    167.52/251.14 = 118.76/x
  3. Step 3: Cross multiply
    167.52x = 251.14 × 118.76
  4. Step 4: Simplify right side
    167.52x = 29,825.39
  5. Step 5: Solve for x
    x = 29,825.39/167.52
  6. Step 6: Final answer
    x = 178.04

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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.