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Finding the Fourth Proportional to 367,941.80, 551,621.10 and 201,729.80

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Solution

The fourth proportional to 367,941.80, 551,621.10 and 201,729.80 is: 302,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,941.80 : 551,621.10 = 201,729.80 : x
  2. Step 2: Convert to fraction form
    367,941.80/551,621.10 = 201,729.80/x
  3. Step 3: Cross multiply
    367,941.80x = 551,621.10 × 201,729.80
  4. Step 4: Simplify right side
    367,941.80x = 111,278,414,178.78
  5. Step 5: Solve for x
    x = 111,278,414,178.78/367,941.80
  6. Step 6: Final answer
    x = 302,434.83

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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.