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Finding the Third Proportional to 98.13 and 190.75

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Solution

The third proportional to 98.13 and 190.75 is: 370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.13 : 190.75 = 190.75 : x
  2. Step 2: Convert to fraction form
    98.13/190.75 = 190.75/x
  3. Step 3: Cross multiply
    98.13x = 190.75 × 190.75
  4. Step 4: Simplify right side
    98.13x = 36,385.56
  5. Step 5: Solve for x
    x = 36,385.56/98.13
  6. Step 6: Final answer
    x = 370.81

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Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.