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Finding the Fourth Proportional to 294,503.20, 441,949.20 and 168,143.20

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Solution

The fourth proportional to 294,503.20, 441,949.20 and 168,143.20 is: 252,325.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,503.20 : 441,949.20 = 168,143.20 : x
  2. Step 2: Convert to fraction form
    294,503.20/441,949.20 = 168,143.20/x
  3. Step 3: Cross multiply
    294,503.20x = 441,949.20 × 168,143.20
  4. Step 4: Simplify right side
    294,503.20x = 74,310,752,725.44
  5. Step 5: Solve for x
    x = 74,310,752,725.44/294,503.20
  6. Step 6: Final answer
    x = 252,325.79

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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.