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Finding the Third Proportional to 168,979.92 and 361,948.50

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Solution

The third proportional to 168,979.92 and 361,948.50 is: 775,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,979.92 : 361,948.50 = 361,948.50 : x
  2. Step 2: Convert to fraction form
    168,979.92/361,948.50 = 361,948.50/x
  3. Step 3: Cross multiply
    168,979.92x = 361,948.50 × 361,948.50
  4. Step 4: Simplify right side
    168,979.92x = 131,006,716,652.25
  5. Step 5: Solve for x
    x = 131,006,716,652.25/168,979.92
  6. Step 6: Final answer
    x = 775,279.78

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.