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Finding the Third Proportional to 133.13 and 195.25

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Solution

The third proportional to 133.13 and 195.25 is: 286.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.13 : 195.25 = 195.25 : x
  2. Step 2: Convert to fraction form
    133.13/195.25 = 195.25/x
  3. Step 3: Cross multiply
    133.13x = 195.25 × 195.25
  4. Step 4: Simplify right side
    133.13x = 38,122.56
  5. Step 5: Solve for x
    x = 38,122.56/133.13
  6. Step 6: Final answer
    x = 286.37

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.