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Finding the Third Proportional to 36,778,530 and 78,040,137

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Solution

The third proportional to 36,778,530 and 78,040,137 is: 165,592,887.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,778,530 : 78,040,137 = 78,040,137 : x
  2. Step 2: Convert to fraction form
    36,778,530/78,040,137 = 78,040,137/x
  3. Step 3: Cross multiply
    36,778,530x = 78,040,137 × 78,040,137
  4. Step 4: Simplify right side
    36,778,530x = 6,090,262,982,978,769
  5. Step 5: Solve for x
    x = 6,090,262,982,978,769/36,778,530
  6. Step 6: Final answer
    x = 165,592,887.56

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.