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Finding the Third Proportional to 91.13 and 150.84

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Solution

The third proportional to 91.13 and 150.84 is: 249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91.13 : 150.84 = 150.84 : x
  2. Step 2: Convert to fraction form
    91.13/150.84 = 150.84/x
  3. Step 3: Cross multiply
    91.13x = 150.84 × 150.84
  4. Step 4: Simplify right side
    91.13x = 22,753.84
  5. Step 5: Solve for x
    x = 22,753.84/91.13
  6. Step 6: Final answer
    x = 249.70

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.