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Finding the Third Proportional to 126 and 141.50

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Solution

The third proportional to 126 and 141.50 is: 158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126 : 141.50 = 141.50 : x
  2. Step 2: Convert to fraction form
    126/141.50 = 141.50/x
  3. Step 3: Cross multiply
    126x = 141.50 × 141.50
  4. Step 4: Simplify right side
    126x = 20,022.25
  5. Step 5: Solve for x
    x = 20,022.25/126
  6. Step 6: Final answer
    x = 158.91

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These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.