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Finding the Third Proportional to 79,863,373 and 122,679,920

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Solution

The third proportional to 79,863,373 and 122,679,920 is: 188,451,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863,373 : 122,679,920 = 122,679,920 : x
  2. Step 2: Convert to fraction form
    79,863,373/122,679,920 = 122,679,920/x
  3. Step 3: Cross multiply
    79,863,373x = 122,679,920 × 122,679,920
  4. Step 4: Simplify right side
    79,863,373x = 15,050,362,771,206,400
  5. Step 5: Solve for x
    x = 15,050,362,771,206,400/79,863,373
  6. Step 6: Final answer
    x = 188,451,378.97

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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.