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Finding the Fourth Proportional to 167.31, 230.88 and 92.62

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Solution

The fourth proportional to 167.31, 230.88 and 92.62 is: 127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.31 : 230.88 = 92.62 : x
  2. Step 2: Convert to fraction form
    167.31/230.88 = 92.62/x
  3. Step 3: Cross multiply
    167.31x = 230.88 × 92.62
  4. Step 4: Simplify right side
    167.31x = 21,383.70
  5. Step 5: Solve for x
    x = 21,383.70/167.31
  6. Step 6: Final answer
    x = 127.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.