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Finding the Third Proportional to 79,863,371 and 122,679,917

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Solution

The third proportional to 79,863,371 and 122,679,917 is: 188,451,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863,371 : 122,679,917 = 122,679,917 : x
  2. Step 2: Convert to fraction form
    79,863,371/122,679,917 = 122,679,917/x
  3. Step 3: Cross multiply
    79,863,371x = 122,679,917 × 122,679,917
  4. Step 4: Simplify right side
    79,863,371x = 15,050,362,035,126,888
  5. Step 5: Solve for x
    x = 15,050,362,035,126,888/79,863,371
  6. Step 6: Final answer
    x = 188,451,374.47

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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.