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Finding the Third Proportional to 68,629,914 and 150,861,780

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Solution

The third proportional to 68,629,914 and 150,861,780 is: 331,623,272.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,629,914 : 150,861,780 = 150,861,780 : x
  2. Step 2: Convert to fraction form
    68,629,914/150,861,780 = 150,861,780/x
  3. Step 3: Cross multiply
    68,629,914x = 150,861,780 × 150,861,780
  4. Step 4: Simplify right side
    68,629,914x = 22,759,276,664,768,400
  5. Step 5: Solve for x
    x = 22,759,276,664,768,400/68,629,914
  6. Step 6: Final answer
    x = 331,623,272.39

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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.