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Finding the Third Proportional to 81,733.50 and 175,991

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Solution

The third proportional to 81,733.50 and 175,991 is: 378,949.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,733.50 : 175,991 = 175,991 : x
  2. Step 2: Convert to fraction form
    81,733.50/175,991 = 175,991/x
  3. Step 3: Cross multiply
    81,733.50x = 175,991 × 175,991
  4. Step 4: Simplify right side
    81,733.50x = 30,972,832,081
  5. Step 5: Solve for x
    x = 30,972,832,081/81,733.50
  6. Step 6: Final answer
    x = 378,949.05

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.