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Finding the Fourth Proportional to 271,982.80, 407,974.20 and 266,150.80

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Solution

The fourth proportional to 271,982.80, 407,974.20 and 266,150.80 is: 399,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,982.80 : 407,974.20 = 266,150.80 : x
  2. Step 2: Convert to fraction form
    271,982.80/407,974.20 = 266,150.80/x
  3. Step 3: Cross multiply
    271,982.80x = 407,974.20 × 266,150.80
  4. Step 4: Simplify right side
    271,982.80x = 108,582,659,709.36
  5. Step 5: Solve for x
    x = 108,582,659,709.36/271,982.80
  6. Step 6: Final answer
    x = 399,226.20

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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.