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Finding the Third Proportional to 104.25 and 157.13

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Solution

The third proportional to 104.25 and 157.13 is: 236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.25 : 157.13 = 157.13 : x
  2. Step 2: Convert to fraction form
    104.25/157.13 = 157.13/x
  3. Step 3: Cross multiply
    104.25x = 157.13 × 157.13
  4. Step 4: Simplify right side
    104.25x = 24,688.27
  5. Step 5: Solve for x
    x = 24,688.27/104.25
  6. Step 6: Final answer
    x = 236.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.