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Finding the Fourth Proportional to 167.74, 251.00 and 108.97

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Solution

The fourth proportional to 167.74, 251.00 and 108.97 is: 163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.74 : 251.00 = 108.97 : x
  2. Step 2: Convert to fraction form
    167.74/251.00 = 108.97/x
  3. Step 3: Cross multiply
    167.74x = 251.00 × 108.97
  4. Step 4: Simplify right side
    167.74x = 27,349.67
  5. Step 5: Solve for x
    x = 27,349.67/167.74
  6. Step 6: Final answer
    x = 163.05

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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.