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Finding the Third Proportional to 171.75 and 246.75

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Solution

The third proportional to 171.75 and 246.75 is: 354.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.75 : 246.75 = 246.75 : x
  2. Step 2: Convert to fraction form
    171.75/246.75 = 246.75/x
  3. Step 3: Cross multiply
    171.75x = 246.75 × 246.75
  4. Step 4: Simplify right side
    171.75x = 60,885.56
  5. Step 5: Solve for x
    x = 60,885.56/171.75
  6. Step 6: Final answer
    x = 354.50

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.