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Finding the Third Proportional to 111.75 and 167

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Solution

The third proportional to 111.75 and 167 is: 249.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111.75 : 167 = 167 : x
  2. Step 2: Convert to fraction form
    111.75/167 = 167/x
  3. Step 3: Cross multiply
    111.75x = 167 × 167
  4. Step 4: Simplify right side
    111.75x = 27,889
  5. Step 5: Solve for x
    x = 27,889/111.75
  6. Step 6: Final answer
    x = 249.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.