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Finding the Third Proportional to 91,391.25 and 200,439.75

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Solution

The third proportional to 91,391.25 and 200,439.75 is: 439,605.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,391.25 : 200,439.75 = 200,439.75 : x
  2. Step 2: Convert to fraction form
    91,391.25/200,439.75 = 200,439.75/x
  3. Step 3: Cross multiply
    91,391.25x = 200,439.75 × 200,439.75
  4. Step 4: Simplify right side
    91,391.25x = 40,176,093,380.06
  5. Step 5: Solve for x
    x = 40,176,093,380.06/91,391.25
  6. Step 6: Final answer
    x = 439,605.47

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.