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Finding the Third Proportional to 45,278,969 and 70,608,870

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Solution

The third proportional to 45,278,969 and 70,608,870 is: 110,108,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,278,969 : 70,608,870 = 70,608,870 : x
  2. Step 2: Convert to fraction form
    45,278,969/70,608,870 = 70,608,870/x
  3. Step 3: Cross multiply
    45,278,969x = 70,608,870 × 70,608,870
  4. Step 4: Simplify right side
    45,278,969x = 4,985,612,522,676,900
  5. Step 5: Solve for x
    x = 4,985,612,522,676,900/45,278,969
  6. Step 6: Final answer
    x = 110,108,790.74

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.