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Finding the Third Proportional to 92,403 and 198,609

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Solution

The third proportional to 92,403 and 198,609 is: 426,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,403 : 198,609 = 198,609 : x
  2. Step 2: Convert to fraction form
    92,403/198,609 = 198,609/x
  3. Step 3: Cross multiply
    92,403x = 198,609 × 198,609
  4. Step 4: Simplify right side
    92,403x = 39,445,534,881
  5. Step 5: Solve for x
    x = 39,445,534,881/92,403
  6. Step 6: Final answer
    x = 426,885.87

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.