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Finding the Third Proportional to 122,655,728 and 248,915,632

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Solution

The third proportional to 122,655,728 and 248,915,632 is: 505,145,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,655,728 : 248,915,632 = 248,915,632 : x
  2. Step 2: Convert to fraction form
    122,655,728/248,915,632 = 248,915,632/x
  3. Step 3: Cross multiply
    122,655,728x = 248,915,632 × 248,915,632
  4. Step 4: Simplify right side
    122,655,728x = 61,958,991,853,959,424
  5. Step 5: Solve for x
    x = 61,958,991,853,959,424/122,655,728
  6. Step 6: Final answer
    x = 505,145,522.87

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.