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Finding the Third Proportional to 91,873,868 and 200,438,478

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Solution

The third proportional to 91,873,868 and 200,438,478 is: 437,290,650.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,873,868 : 200,438,478 = 200,438,478 : x
  2. Step 2: Convert to fraction form
    91,873,868/200,438,478 = 200,438,478/x
  3. Step 3: Cross multiply
    91,873,868x = 200,438,478 × 200,438,478
  4. Step 4: Simplify right side
    91,873,868x = 40,175,583,462,956,480
  5. Step 5: Solve for x
    x = 40,175,583,462,956,480/91,873,868
  6. Step 6: Final answer
    x = 437,290,650.08

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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.