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Finding the Fourth Proportional to 204,811.20, 307,216.80 and 195,625.80

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Solution

The fourth proportional to 204,811.20, 307,216.80 and 195,625.80 is: 293,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,811.20 : 307,216.80 = 195,625.80 : x
  2. Step 2: Convert to fraction form
    204,811.20/307,216.80 = 195,625.80/x
  3. Step 3: Cross multiply
    204,811.20x = 307,216.80 × 195,625.80
  4. Step 4: Simplify right side
    204,811.20x = 60,099,532,273.44
  5. Step 5: Solve for x
    x = 60,099,532,273.44/204,811.20
  6. Step 6: Final answer
    x = 293,438.70

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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.