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Finding the Third Proportional to 166.75 and 188.75

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Solution

The third proportional to 166.75 and 188.75 is: 213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.75 : 188.75 = 188.75 : x
  2. Step 2: Convert to fraction form
    166.75/188.75 = 188.75/x
  3. Step 3: Cross multiply
    166.75x = 188.75 × 188.75
  4. Step 4: Simplify right side
    166.75x = 35,626.56
  5. Step 5: Solve for x
    x = 35,626.56/166.75
  6. Step 6: Final answer
    x = 213.65

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.