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Finding the Fourth Proportional to 167.87, 251.91 and 113.01

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Solution

The fourth proportional to 167.87, 251.91 and 113.01 is: 169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.87 : 251.91 = 113.01 : x
  2. Step 2: Convert to fraction form
    167.87/251.91 = 113.01/x
  3. Step 3: Cross multiply
    167.87x = 251.91 × 113.01
  4. Step 4: Simplify right side
    167.87x = 28,468.35
  5. Step 5: Solve for x
    x = 28,468.35/167.87
  6. Step 6: Final answer
    x = 169.59

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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.