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Finding the Third Proportional to 63,928,926 and 138,072,753

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Solution

The third proportional to 63,928,926 and 138,072,753 is: 298,207,498.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,928,926 : 138,072,753 = 138,072,753 : x
  2. Step 2: Convert to fraction form
    63,928,926/138,072,753 = 138,072,753/x
  3. Step 3: Cross multiply
    63,928,926x = 138,072,753 × 138,072,753
  4. Step 4: Simplify right side
    63,928,926x = 19,064,085,120,999,008
  5. Step 5: Solve for x
    x = 19,064,085,120,999,008/63,928,926
  6. Step 6: Final answer
    x = 298,207,498.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.