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Finding the Fourth Proportional to 167.24, 250.76 and 80.41

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Solution

The fourth proportional to 167.24, 250.76 and 80.41 is: 120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.24 : 250.76 = 80.41 : x
  2. Step 2: Convert to fraction form
    167.24/250.76 = 80.41/x
  3. Step 3: Cross multiply
    167.24x = 250.76 × 80.41
  4. Step 4: Simplify right side
    167.24x = 20,162.52
  5. Step 5: Solve for x
    x = 20,162.52/167.24
  6. Step 6: Final answer
    x = 120.56

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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.