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Finding the Third Proportional to 167.75 and 269.38

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Solution

The third proportional to 167.75 and 269.38 is: 432.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.75 : 269.38 = 269.38 : x
  2. Step 2: Convert to fraction form
    167.75/269.38 = 269.38/x
  3. Step 3: Cross multiply
    167.75x = 269.38 × 269.38
  4. Step 4: Simplify right side
    167.75x = 72,562.89
  5. Step 5: Solve for x
    x = 72,562.89/167.75
  6. Step 6: Final answer
    x = 432.57

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.