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Finding the Third Proportional to 132 and 201.38

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Solution

The third proportional to 132 and 201.38 is: 307.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132 : 201.38 = 201.38 : x
  2. Step 2: Convert to fraction form
    132/201.38 = 201.38/x
  3. Step 3: Cross multiply
    132x = 201.38 × 201.38
  4. Step 4: Simplify right side
    132x = 40,551.89
  5. Step 5: Solve for x
    x = 40,551.89/132
  6. Step 6: Final answer
    x = 307.21

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.