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Finding the Fourth Proportional to 271,972.60, 407,570.10 and 200,336.20

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Solution

The fourth proportional to 271,972.60, 407,570.10 and 200,336.20 is: 300,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,972.60 : 407,570.10 = 200,336.20 : x
  2. Step 2: Convert to fraction form
    271,972.60/407,570.10 = 200,336.20/x
  3. Step 3: Cross multiply
    271,972.60x = 407,570.10 × 200,336.20
  4. Step 4: Simplify right side
    271,972.60x = 81,651,045,067.62
  5. Step 5: Solve for x
    x = 81,651,045,067.62/271,972.60
  6. Step 6: Final answer
    x = 300,217.91

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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.