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Finding the Third Proportional to 63,917,136 and 138,049,560

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Solution

The third proportional to 63,917,136 and 138,049,560 is: 298,162,311.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,917,136 : 138,049,560 = 138,049,560 : x
  2. Step 2: Convert to fraction form
    63,917,136/138,049,560 = 138,049,560/x
  3. Step 3: Cross multiply
    63,917,136x = 138,049,560 × 138,049,560
  4. Step 4: Simplify right side
    63,917,136x = 19,057,681,016,193,600
  5. Step 5: Solve for x
    x = 19,057,681,016,193,600/63,917,136
  6. Step 6: Final answer
    x = 298,162,311.53

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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.