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Finding the Third Proportional to 81,796 and 115,994

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Solution

The third proportional to 81,796 and 115,994 is: 164,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,796 : 115,994 = 115,994 : x
  2. Step 2: Convert to fraction form
    81,796/115,994 = 115,994/x
  3. Step 3: Cross multiply
    81,796x = 115,994 × 115,994
  4. Step 4: Simplify right side
    81,796x = 13,454,608,036
  5. Step 5: Solve for x
    x = 13,454,608,036/81,796
  6. Step 6: Final answer
    x = 164,489.80

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.