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Finding the Third Proportional to 39,319,894 and 86,198,059

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Solution

The third proportional to 39,319,894 and 86,198,059 is: 188,965,549.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,319,894 : 86,198,059 = 86,198,059 : x
  2. Step 2: Convert to fraction form
    39,319,894/86,198,059 = 86,198,059/x
  3. Step 3: Cross multiply
    39,319,894x = 86,198,059 × 86,198,059
  4. Step 4: Simplify right side
    39,319,894x = 7,430,105,375,367,481
  5. Step 5: Solve for x
    x = 7,430,105,375,367,481/39,319,894
  6. Step 6: Final answer
    x = 188,965,549.48

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.