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Finding the Fourth Proportional to 111.26, 167.02 and 93.44

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Solution

The fourth proportional to 111.26, 167.02 and 93.44 is: 140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.26 : 167.02 = 93.44 : x
  2. Step 2: Convert to fraction form
    111.26/167.02 = 93.44/x
  3. Step 3: Cross multiply
    111.26x = 167.02 × 93.44
  4. Step 4: Simplify right side
    111.26x = 15,606.35
  5. Step 5: Solve for x
    x = 15,606.35/111.26
  6. Step 6: Final answer
    x = 140.27

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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.