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Finding the Fourth Proportional to 367,080.70, 550,621.05 and 209,616.70

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Solution

The fourth proportional to 367,080.70, 550,621.05 and 209,616.70 is: 314,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,080.70 : 550,621.05 = 209,616.70 : x
  2. Step 2: Convert to fraction form
    367,080.70/550,621.05 = 209,616.70/x
  3. Step 3: Cross multiply
    367,080.70x = 550,621.05 × 209,616.70
  4. Step 4: Simplify right side
    367,080.70x = 115,419,367,451.54
  5. Step 5: Solve for x
    x = 115,419,367,451.54/367,080.70
  6. Step 6: Final answer
    x = 314,425.05

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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.