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Finding the Fourth Proportional to 231.44, 347.13 and 166.97

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Solution

The fourth proportional to 231.44, 347.13 and 166.97 is: 250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.44 : 347.13 = 166.97 : x
  2. Step 2: Convert to fraction form
    231.44/347.13 = 166.97/x
  3. Step 3: Cross multiply
    231.44x = 347.13 × 166.97
  4. Step 4: Simplify right side
    231.44x = 57,961.16
  5. Step 5: Solve for x
    x = 57,961.16/231.44
  6. Step 6: Final answer
    x = 250.44

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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.