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Finding the Third Proportional to 63,215,988 and 137,918,032

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Solution

The third proportional to 63,215,988 and 137,918,032 is: 300,895,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,215,988 : 137,918,032 = 137,918,032 : x
  2. Step 2: Convert to fraction form
    63,215,988/137,918,032 = 137,918,032/x
  3. Step 3: Cross multiply
    63,215,988x = 137,918,032 × 137,918,032
  4. Step 4: Simplify right side
    63,215,988x = 19,021,383,550,753,024
  5. Step 5: Solve for x
    x = 19,021,383,550,753,024/63,215,988
  6. Step 6: Final answer
    x = 300,895,139.86

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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.