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Finding the Third Proportional to 84,422,691 and 126,137,070

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Solution

The third proportional to 84,422,691 and 126,137,070 is: 188,463,080.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,422,691 : 126,137,070 = 126,137,070 : x
  2. Step 2: Convert to fraction form
    84,422,691/126,137,070 = 126,137,070/x
  3. Step 3: Cross multiply
    84,422,691x = 126,137,070 × 126,137,070
  4. Step 4: Simplify right side
    84,422,691x = 15,910,560,428,184,900
  5. Step 5: Solve for x
    x = 15,910,560,428,184,900/84,422,691
  6. Step 6: Final answer
    x = 188,463,080.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.