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Finding the Third Proportional to 217,676.25 and 336,351.38

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Solution

The third proportional to 217,676.25 and 336,351.38 is: 519,727.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,676.25 : 336,351.38 = 336,351.38 : x
  2. Step 2: Convert to fraction form
    217,676.25/336,351.38 = 336,351.38/x
  3. Step 3: Cross multiply
    217,676.25x = 336,351.38 × 336,351.38
  4. Step 4: Simplify right side
    217,676.25x = 113,132,247,464.39
  5. Step 5: Solve for x
    x = 113,132,247,464.39/217,676.25
  6. Step 6: Final answer
    x = 519,727.11

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.