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Finding the Third Proportional to 91,979,630 and 200,288,872

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Solution

The third proportional to 91,979,630 and 200,288,872 is: 436,136,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,979,630 : 200,288,872 = 200,288,872 : x
  2. Step 2: Convert to fraction form
    91,979,630/200,288,872 = 200,288,872/x
  3. Step 3: Cross multiply
    91,979,630x = 200,288,872 × 200,288,872
  4. Step 4: Simplify right side
    91,979,630x = 40,115,632,247,032,384
  5. Step 5: Solve for x
    x = 40,115,632,247,032,384/91,979,630
  6. Step 6: Final answer
    x = 436,136,047.16

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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.