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Finding the Third Proportional to 79,242.75 and 162,129.25

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Solution

The third proportional to 79,242.75 and 162,129.25 is: 331,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,242.75 : 162,129.25 = 162,129.25 : x
  2. Step 2: Convert to fraction form
    79,242.75/162,129.25 = 162,129.25/x
  3. Step 3: Cross multiply
    79,242.75x = 162,129.25 × 162,129.25
  4. Step 4: Simplify right side
    79,242.75x = 26,285,893,705.56
  5. Step 5: Solve for x
    x = 26,285,893,705.56/79,242.75
  6. Step 6: Final answer
    x = 331,713.55

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.