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Finding the Third Proportional to 124 and 165.50

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Solution

The third proportional to 124 and 165.50 is: 220.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124 : 165.50 = 165.50 : x
  2. Step 2: Convert to fraction form
    124/165.50 = 165.50/x
  3. Step 3: Cross multiply
    124x = 165.50 × 165.50
  4. Step 4: Simplify right side
    124x = 27,390.25
  5. Step 5: Solve for x
    x = 27,390.25/124
  6. Step 6: Final answer
    x = 220.89

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These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.