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Finding the Third Proportional to 91,451.25 and 199,660.50

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Solution

The third proportional to 91,451.25 and 199,660.50 is: 435,907.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,451.25 : 199,660.50 = 199,660.50 : x
  2. Step 2: Convert to fraction form
    91,451.25/199,660.50 = 199,660.50/x
  3. Step 3: Cross multiply
    91,451.25x = 199,660.50 × 199,660.50
  4. Step 4: Simplify right side
    91,451.25x = 39,864,315,260.25
  5. Step 5: Solve for x
    x = 39,864,315,260.25/91,451.25
  6. Step 6: Final answer
    x = 435,907.82

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.