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Finding the Third Proportional to 81,564.75 and 165,422.25

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Solution

The third proportional to 81,564.75 and 165,422.25 is: 335,494.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,564.75 : 165,422.25 = 165,422.25 : x
  2. Step 2: Convert to fraction form
    81,564.75/165,422.25 = 165,422.25/x
  3. Step 3: Cross multiply
    81,564.75x = 165,422.25 × 165,422.25
  4. Step 4: Simplify right side
    81,564.75x = 27,364,520,795.06
  5. Step 5: Solve for x
    x = 27,364,520,795.06/81,564.75
  6. Step 6: Final answer
    x = 335,494.45

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.