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Finding the Fourth Proportional to 111.52, 167.33 and 63.46

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Solution

The fourth proportional to 111.52, 167.33 and 63.46 is: 95.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.52 : 167.33 = 63.46 : x
  2. Step 2: Convert to fraction form
    111.52/167.33 = 63.46/x
  3. Step 3: Cross multiply
    111.52x = 167.33 × 63.46
  4. Step 4: Simplify right side
    111.52x = 10,618.76
  5. Step 5: Solve for x
    x = 10,618.76/111.52
  6. Step 6: Final answer
    x = 95.22

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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.