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Finding the Third Proportional to 68,629,912 and 150,861,776

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Solution

The third proportional to 68,629,912 and 150,861,776 is: 331,623,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,629,912 : 150,861,776 = 150,861,776 : x
  2. Step 2: Convert to fraction form
    68,629,912/150,861,776 = 150,861,776/x
  3. Step 3: Cross multiply
    68,629,912x = 150,861,776 × 150,861,776
  4. Step 4: Simplify right side
    68,629,912x = 22,759,275,457,874,176
  5. Step 5: Solve for x
    x = 22,759,275,457,874,176/68,629,912
  6. Step 6: Final answer
    x = 331,623,264.47

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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.