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Finding the Fourth Proportional to 271,996.20, 407,648.70 and 131,452.20

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Solution

The fourth proportional to 271,996.20, 407,648.70 and 131,452.20 is: 197,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,996.20 : 407,648.70 = 131,452.20 : x
  2. Step 2: Convert to fraction form
    271,996.20/407,648.70 = 131,452.20/x
  3. Step 3: Cross multiply
    271,996.20x = 407,648.70 × 131,452.20
  4. Step 4: Simplify right side
    271,996.20x = 53,586,318,442.14
  5. Step 5: Solve for x
    x = 53,586,318,442.14/271,996.20
  6. Step 6: Final answer
    x = 197,011.28

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1.5x scale

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.