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Finding the Fourth Proportional to 367,081.20, 550,621.80 and 255,106.80

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Solution

The fourth proportional to 367,081.20, 550,621.80 and 255,106.80 is: 382,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,081.20 : 550,621.80 = 255,106.80 : x
  2. Step 2: Convert to fraction form
    367,081.20/550,621.80 = 255,106.80/x
  3. Step 3: Cross multiply
    367,081.20x = 550,621.80 × 255,106.80
  4. Step 4: Simplify right side
    367,081.20x = 140,467,365,408.24
  5. Step 5: Solve for x
    x = 140,467,365,408.24/367,081.20
  6. Step 6: Final answer
    x = 382,660.20

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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.