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Finding the Third Proportional to 132 and 187.75

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Solution

The third proportional to 132 and 187.75 is: 267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132 : 187.75 = 187.75 : x
  2. Step 2: Convert to fraction form
    132/187.75 = 187.75/x
  3. Step 3: Cross multiply
    132x = 187.75 × 187.75
  4. Step 4: Simplify right side
    132x = 35,250.06
  5. Step 5: Solve for x
    x = 35,250.06/132
  6. Step 6: Final answer
    x = 267.05

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.