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Finding the Third Proportional to 172,923.75 and 371,679.75

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Solution

The third proportional to 172,923.75 and 371,679.75 is: 798,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,923.75 : 371,679.75 = 371,679.75 : x
  2. Step 2: Convert to fraction form
    172,923.75/371,679.75 = 371,679.75/x
  3. Step 3: Cross multiply
    172,923.75x = 371,679.75 × 371,679.75
  4. Step 4: Simplify right side
    172,923.75x = 138,145,836,560.06
  5. Step 5: Solve for x
    x = 138,145,836,560.06/172,923.75
  6. Step 6: Final answer
    x = 798,882.96

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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.