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Finding the Third Proportional to 79.88 and 167.25

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Solution

The third proportional to 79.88 and 167.25 is: 350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.88 : 167.25 = 167.25 : x
  2. Step 2: Convert to fraction form
    79.88/167.25 = 167.25/x
  3. Step 3: Cross multiply
    79.88x = 167.25 × 167.25
  4. Step 4: Simplify right side
    79.88x = 27,972.56
  5. Step 5: Solve for x
    x = 27,972.56/79.88
  6. Step 6: Final answer
    x = 350.20

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.