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Finding the Third Proportional to 112,808 and 157,098

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Solution

The third proportional to 112,808 and 157,098 is: 218,776.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,808 : 157,098 = 157,098 : x
  2. Step 2: Convert to fraction form
    112,808/157,098 = 157,098/x
  3. Step 3: Cross multiply
    112,808x = 157,098 × 157,098
  4. Step 4: Simplify right side
    112,808x = 24,679,781,604
  5. Step 5: Solve for x
    x = 24,679,781,604/112,808
  6. Step 6: Final answer
    x = 218,776.87

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.