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Finding the Fourth Proportional to 367,300.80, 550,821.60 and 130,651.20

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Solution

The fourth proportional to 367,300.80, 550,821.60 and 130,651.20 is: 195,930.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,300.80 : 550,821.60 = 130,651.20 : x
  2. Step 2: Convert to fraction form
    367,300.80/550,821.60 = 130,651.20/x
  3. Step 3: Cross multiply
    367,300.80x = 550,821.60 × 130,651.20
  4. Step 4: Simplify right side
    367,300.80x = 71,965,503,025.92
  5. Step 5: Solve for x
    x = 71,965,503,025.92/367,300.80
  6. Step 6: Final answer
    x = 195,930.70

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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.