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Finding the Fourth Proportional to 259,096.80, 389,228.40 and 252,098.40

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Solution

The fourth proportional to 259,096.80, 389,228.40 and 252,098.40 is: 378,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,096.80 : 389,228.40 = 252,098.40 : x
  2. Step 2: Convert to fraction form
    259,096.80/389,228.40 = 252,098.40/x
  3. Step 3: Cross multiply
    259,096.80x = 389,228.40 × 252,098.40
  4. Step 4: Simplify right side
    259,096.80x = 98,123,856,874.56
  5. Step 5: Solve for x
    x = 98,123,856,874.56/259,096.80
  6. Step 6: Final answer
    x = 378,715.05

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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.