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Finding the Third Proportional to 79,863,518 and 122,680,134

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Solution

The third proportional to 79,863,518 and 122,680,134 is: 188,451,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863,518 : 122,680,134 = 122,680,134 : x
  2. Step 2: Convert to fraction form
    79,863,518/122,680,134 = 122,680,134/x
  3. Step 3: Cross multiply
    79,863,518x = 122,680,134 × 122,680,134
  4. Step 4: Simplify right side
    79,863,518x = 15,050,415,278,257,956
  5. Step 5: Solve for x
    x = 15,050,415,278,257,956/79,863,518
  6. Step 6: Final answer
    x = 188,451,694.28

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.