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Finding the Third Proportional to 122,655,722 and 248,915,620

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Solution

The third proportional to 122,655,722 and 248,915,620 is: 505,145,498.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,655,722 : 248,915,620 = 248,915,620 : x
  2. Step 2: Convert to fraction form
    122,655,722/248,915,620 = 248,915,620/x
  3. Step 3: Cross multiply
    122,655,722x = 248,915,620 × 248,915,620
  4. Step 4: Simplify right side
    122,655,722x = 61,958,985,879,984,400
  5. Step 5: Solve for x
    x = 61,958,985,879,984,400/122,655,722
  6. Step 6: Final answer
    x = 505,145,498.88

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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.