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Finding the Third Proportional to 90,425.81 and 198,586.69

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Solution

The third proportional to 90,425.81 and 198,586.69 is: 436,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,425.81 : 198,586.69 = 198,586.69 : x
  2. Step 2: Convert to fraction form
    90,425.81/198,586.69 = 198,586.69/x
  3. Step 3: Cross multiply
    90,425.81x = 198,586.69 × 198,586.69
  4. Step 4: Simplify right side
    90,425.81x = 39,436,672,452.22
  5. Step 5: Solve for x
    x = 39,436,672,452.22/90,425.81
  6. Step 6: Final answer
    x = 436,121.85

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.