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Finding the Fourth Proportional to 167.44, 231.11 and 102.00

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Solution

The fourth proportional to 167.44, 231.11 and 102.00 is: 140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.44 : 231.11 = 102.00 : x
  2. Step 2: Convert to fraction form
    167.44/231.11 = 102.00/x
  3. Step 3: Cross multiply
    167.44x = 231.11 × 102.00
  4. Step 4: Simplify right side
    167.44x = 23,571.55
  5. Step 5: Solve for x
    x = 23,571.55/167.44
  6. Step 6: Final answer
    x = 140.78

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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.