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Finding the Third Proportional to 131.13 and 196.75

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Solution

The third proportional to 131.13 and 196.75 is: 295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.13 : 196.75 = 196.75 : x
  2. Step 2: Convert to fraction form
    131.13/196.75 = 196.75/x
  3. Step 3: Cross multiply
    131.13x = 196.75 × 196.75
  4. Step 4: Simplify right side
    131.13x = 38,710.56
  5. Step 5: Solve for x
    x = 38,710.56/131.13
  6. Step 6: Final answer
    x = 295.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.