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Finding the Third Proportional to 61,685,876 and 135,479,392

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Solution

The third proportional to 61,685,876 and 135,479,392 is: 297,550,539.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,685,876 : 135,479,392 = 135,479,392 : x
  2. Step 2: Convert to fraction form
    61,685,876/135,479,392 = 135,479,392/x
  3. Step 3: Cross multiply
    61,685,876x = 135,479,392 × 135,479,392
  4. Step 4: Simplify right side
    61,685,876x = 18,354,665,656,689,664
  5. Step 5: Solve for x
    x = 18,354,665,656,689,664/61,685,876
  6. Step 6: Final answer
    x = 297,550,539.07

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.