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Finding the Third Proportional to 54,979,843 and 80,672,408

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Solution

The third proportional to 54,979,843 and 80,672,408 is: 118,371,334.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,979,843 : 80,672,408 = 80,672,408 : x
  2. Step 2: Convert to fraction form
    54,979,843/80,672,408 = 80,672,408/x
  3. Step 3: Cross multiply
    54,979,843x = 80,672,408 × 80,672,408
  4. Step 4: Simplify right side
    54,979,843x = 6,508,037,412,518,464
  5. Step 5: Solve for x
    x = 6,508,037,412,518,464/54,979,843
  6. Step 6: Final answer
    x = 118,371,334.97

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.