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Finding the Fourth Proportional to 325,217.28, 487,874.52 and 100,597.80

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Solution

The fourth proportional to 325,217.28, 487,874.52 and 100,597.80 is: 150,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,217.28 : 487,874.52 = 100,597.80 : x
  2. Step 2: Convert to fraction form
    325,217.28/487,874.52 = 100,597.80/x
  3. Step 3: Cross multiply
    325,217.28x = 487,874.52 × 100,597.80
  4. Step 4: Simplify right side
    325,217.28x = 49,079,103,388.06
  5. Step 5: Solve for x
    x = 49,079,103,388.06/325,217.28
  6. Step 6: Final answer
    x = 150,911.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.