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Finding the Third Proportional to 132 and 205.50

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Solution

The third proportional to 132 and 205.50 is: 319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132 : 205.50 = 205.50 : x
  2. Step 2: Convert to fraction form
    132/205.50 = 205.50/x
  3. Step 3: Cross multiply
    132x = 205.50 × 205.50
  4. Step 4: Simplify right side
    132x = 42,230.25
  5. Step 5: Solve for x
    x = 42,230.25/132
  6. Step 6: Final answer
    x = 319.93

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.