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Finding the Third Proportional to 92 and 157.25

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Solution

The third proportional to 92 and 157.25 is: 268.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92 : 157.25 = 157.25 : x
  2. Step 2: Convert to fraction form
    92/157.25 = 157.25/x
  3. Step 3: Cross multiply
    92x = 157.25 × 157.25
  4. Step 4: Simplify right side
    92x = 24,727.56
  5. Step 5: Solve for x
    x = 24,727.56/92
  6. Step 6: Final answer
    x = 268.78

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Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.