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Finding the Fourth Proportional to 329,633.15, 494,449.72 and 119,221.88

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Solution

The fourth proportional to 329,633.15, 494,449.72 and 119,221.88 is: 178,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,633.15 : 494,449.72 = 119,221.88 : x
  2. Step 2: Convert to fraction form
    329,633.15/494,449.72 = 119,221.88/x
  3. Step 3: Cross multiply
    329,633.15x = 494,449.72 × 119,221.88
  4. Step 4: Simplify right side
    329,633.15x = 58,949,222,413.57
  5. Step 5: Solve for x
    x = 58,949,222,413.57/329,633.15
  6. Step 6: Final answer
    x = 178,832.81

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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.