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Finding the Third Proportional to 167.75 and 251.75

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Solution

The third proportional to 167.75 and 251.75 is: 377.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.75 : 251.75 = 251.75 : x
  2. Step 2: Convert to fraction form
    167.75/251.75 = 251.75/x
  3. Step 3: Cross multiply
    167.75x = 251.75 × 251.75
  4. Step 4: Simplify right side
    167.75x = 63,378.06
  5. Step 5: Solve for x
    x = 63,378.06/167.75
  6. Step 6: Final answer
    x = 377.81

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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.