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Finding the Third Proportional to 59,917,630 and 129,091,223

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Solution

The third proportional to 59,917,630 and 129,091,223 is: 278,124,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,917,630 : 129,091,223 = 129,091,223 : x
  2. Step 2: Convert to fraction form
    59,917,630/129,091,223 = 129,091,223/x
  3. Step 3: Cross multiply
    59,917,630x = 129,091,223 × 129,091,223
  4. Step 4: Simplify right side
    59,917,630x = 16,664,543,855,635,728
  5. Step 5: Solve for x
    x = 16,664,543,855,635,728/59,917,630
  6. Step 6: Final answer
    x = 278,124,215.79

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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.