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Finding the Third Proportional to 81,566 and 120,833

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Solution

The third proportional to 81,566 and 120,833 is: 179,003.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,566 : 120,833 = 120,833 : x
  2. Step 2: Convert to fraction form
    81,566/120,833 = 120,833/x
  3. Step 3: Cross multiply
    81,566x = 120,833 × 120,833
  4. Step 4: Simplify right side
    81,566x = 14,600,613,889
  5. Step 5: Solve for x
    x = 14,600,613,889/81,566
  6. Step 6: Final answer
    x = 179,003.68

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.