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Finding the Third Proportional to 100,327,566 and 155,056,890

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Solution

The third proportional to 100,327,566 and 155,056,890 is: 239,641,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,327,566 : 155,056,890 = 155,056,890 : x
  2. Step 2: Convert to fraction form
    100,327,566/155,056,890 = 155,056,890/x
  3. Step 3: Cross multiply
    100,327,566x = 155,056,890 × 155,056,890
  4. Step 4: Simplify right side
    100,327,566x = 24,042,639,136,472,100
  5. Step 5: Solve for x
    x = 24,042,639,136,472,100/100,327,566
  6. Step 6: Final answer
    x = 239,641,407.59

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.