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Finding the Third Proportional to 97.88 and 141.75

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Solution

The third proportional to 97.88 and 141.75 is: 205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.88 : 141.75 = 141.75 : x
  2. Step 2: Convert to fraction form
    97.88/141.75 = 141.75/x
  3. Step 3: Cross multiply
    97.88x = 141.75 × 141.75
  4. Step 4: Simplify right side
    97.88x = 20,093.06
  5. Step 5: Solve for x
    x = 20,093.06/97.88
  6. Step 6: Final answer
    x = 205.29

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.