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Finding the Third Proportional to 110.75 and 134.38

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Solution

The third proportional to 110.75 and 134.38 is: 163.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.75 : 134.38 = 134.38 : x
  2. Step 2: Convert to fraction form
    110.75/134.38 = 134.38/x
  3. Step 3: Cross multiply
    110.75x = 134.38 × 134.38
  4. Step 4: Simplify right side
    110.75x = 18,056.64
  5. Step 5: Solve for x
    x = 18,056.64/110.75
  6. Step 6: Final answer
    x = 163.04

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.