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Finding the Third Proportional to 86,858,121 and 190,930,689

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Solution

The third proportional to 86,858,121 and 190,930,689 is: 419,702,010.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,858,121 : 190,930,689 = 190,930,689 : x
  2. Step 2: Convert to fraction form
    86,858,121/190,930,689 = 190,930,689/x
  3. Step 3: Cross multiply
    86,858,121x = 190,930,689 × 190,930,689
  4. Step 4: Simplify right side
    86,858,121x = 36,454,528,002,014,720
  5. Step 5: Solve for x
    x = 36,454,528,002,014,720/86,858,121
  6. Step 6: Final answer
    x = 419,702,010.39

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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.