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Finding the Third Proportional to 122,639,430 and 267,051,660

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Solution

The third proportional to 122,639,430 and 267,051,660 is: 581,514,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,639,430 : 267,051,660 = 267,051,660 : x
  2. Step 2: Convert to fraction form
    122,639,430/267,051,660 = 267,051,660/x
  3. Step 3: Cross multiply
    122,639,430x = 267,051,660 × 267,051,660
  4. Step 4: Simplify right side
    122,639,430x = 71,316,589,108,755,600
  5. Step 5: Solve for x
    x = 71,316,589,108,755,600/122,639,430
  6. Step 6: Final answer
    x = 581,514,355.61

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.