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Finding the Fourth Proportional to 167.14, 230.63 and 111.96

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Solution

The fourth proportional to 167.14, 230.63 and 111.96 is: 154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.14 : 230.63 = 111.96 : x
  2. Step 2: Convert to fraction form
    167.14/230.63 = 111.96/x
  3. Step 3: Cross multiply
    167.14x = 230.63 × 111.96
  4. Step 4: Simplify right side
    167.14x = 25,820.78
  5. Step 5: Solve for x
    x = 25,820.78/167.14
  6. Step 6: Final answer
    x = 154.48

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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.