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Finding the Third Proportional to 166,945 and 393,698

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Solution

The third proportional to 166,945 and 393,698 is: 928,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,945 : 393,698 = 393,698 : x
  2. Step 2: Convert to fraction form
    166,945/393,698 = 393,698/x
  3. Step 3: Cross multiply
    166,945x = 393,698 × 393,698
  4. Step 4: Simplify right side
    166,945x = 154,998,115,204
  5. Step 5: Solve for x
    x = 154,998,115,204/166,945
  6. Step 6: Final answer
    x = 928,438.20

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.