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Finding the Third Proportional to 170.75 and 193

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Solution

The third proportional to 170.75 and 193 is: 218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.75 : 193 = 193 : x
  2. Step 2: Convert to fraction form
    170.75/193 = 193/x
  3. Step 3: Cross multiply
    170.75x = 193 × 193
  4. Step 4: Simplify right side
    170.75x = 37,249
  5. Step 5: Solve for x
    x = 37,249/170.75
  6. Step 6: Final answer
    x = 218.15

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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.