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Finding the Fourth Proportional to 167.41, 250.73 and 120.85

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Solution

The fourth proportional to 167.41, 250.73 and 120.85 is: 180.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.41 : 250.73 = 120.85 : x
  2. Step 2: Convert to fraction form
    167.41/250.73 = 120.85/x
  3. Step 3: Cross multiply
    167.41x = 250.73 × 120.85
  4. Step 4: Simplify right side
    167.41x = 30,299.47
  5. Step 5: Solve for x
    x = 30,299.47/167.41
  6. Step 6: Final answer
    x = 180.99

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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.