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Finding the Third Proportional to 92,400.75 and 198,915.75

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Solution

The third proportional to 92,400.75 and 198,915.75 is: 428,215.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,400.75 : 198,915.75 = 198,915.75 : x
  2. Step 2: Convert to fraction form
    92,400.75/198,915.75 = 198,915.75/x
  3. Step 3: Cross multiply
    92,400.75x = 198,915.75 × 198,915.75
  4. Step 4: Simplify right side
    92,400.75x = 39,567,475,598.06
  5. Step 5: Solve for x
    x = 39,567,475,598.06/92,400.75
  6. Step 6: Final answer
    x = 428,215.96

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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.