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Finding the Third Proportional to 92.13 and 191.81

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Solution

The third proportional to 92.13 and 191.81 is: 399.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.13 : 191.81 = 191.81 : x
  2. Step 2: Convert to fraction form
    92.13/191.81 = 191.81/x
  3. Step 3: Cross multiply
    92.13x = 191.81 × 191.81
  4. Step 4: Simplify right side
    92.13x = 36,792.04
  5. Step 5: Solve for x
    x = 36,792.04/92.13
  6. Step 6: Final answer
    x = 399.37

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.