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Finding the Fourth Proportional to 360,115.73, 539,639.05 and 146,622.46

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Solution

The fourth proportional to 360,115.73, 539,639.05 and 146,622.46 is: 219,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,115.73 : 539,639.05 = 146,622.46 : x
  2. Step 2: Convert to fraction form
    360,115.73/539,639.05 = 146,622.46/x
  3. Step 3: Cross multiply
    360,115.73x = 539,639.05 × 146,622.46
  4. Step 4: Simplify right side
    360,115.73x = 79,123,204,535.43
  5. Step 5: Solve for x
    x = 79,123,204,535.43/360,115.73
  6. Step 6: Final answer
    x = 219,716.04

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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.