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Finding the Third Proportional to 82,156 and 126,859

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Solution

The third proportional to 82,156 and 126,859 is: 195,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,156 : 126,859 = 126,859 : x
  2. Step 2: Convert to fraction form
    82,156/126,859 = 126,859/x
  3. Step 3: Cross multiply
    82,156x = 126,859 × 126,859
  4. Step 4: Simplify right side
    82,156x = 16,093,205,881
  5. Step 5: Solve for x
    x = 16,093,205,881/82,156
  6. Step 6: Final answer
    x = 195,885.95

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.