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Finding the Third Proportional to 54,979,842 and 80,672,406

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Solution

The third proportional to 54,979,842 and 80,672,406 is: 118,371,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,979,842 : 80,672,406 = 80,672,406 : x
  2. Step 2: Convert to fraction form
    54,979,842/80,672,406 = 80,672,406/x
  3. Step 3: Cross multiply
    54,979,842x = 80,672,406 × 80,672,406
  4. Step 4: Simplify right side
    54,979,842x = 6,508,037,089,828,836
  5. Step 5: Solve for x
    x = 6,508,037,089,828,836/54,979,842
  6. Step 6: Final answer
    x = 118,371,331.26

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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.