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Finding the Fourth Proportional to 294,310.80, 441,120.56 and 136,205.28

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Solution

The fourth proportional to 294,310.80, 441,120.56 and 136,205.28 is: 204,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,310.80 : 441,120.56 = 136,205.28 : x
  2. Step 2: Convert to fraction form
    294,310.80/441,120.56 = 136,205.28/x
  3. Step 3: Cross multiply
    294,310.80x = 441,120.56 × 136,205.28
  4. Step 4: Simplify right side
    294,310.80x = 60,082,949,388.56
  5. Step 5: Solve for x
    x = 60,082,949,388.56/294,310.80
  6. Step 6: Final answer
    x = 204,147.96

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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.