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Finding the Third Proportional to 92,445.75 and 198,721.13

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Solution

The third proportional to 92,445.75 and 198,721.13 is: 427,170.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,445.75 : 198,721.13 = 198,721.13 : x
  2. Step 2: Convert to fraction form
    92,445.75/198,721.13 = 198,721.13/x
  3. Step 3: Cross multiply
    92,445.75x = 198,721.13 × 198,721.13
  4. Step 4: Simplify right side
    92,445.75x = 39,490,085,521.27
  5. Step 5: Solve for x
    x = 39,490,085,521.27/92,445.75
  6. Step 6: Final answer
    x = 427,170.37

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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.