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Finding the Fourth Proportional to 329,922.33, 494,879.18 and 80,606.49

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Solution

The fourth proportional to 329,922.33, 494,879.18 and 80,606.49 is: 120,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,922.33 : 494,879.18 = 80,606.49 : x
  2. Step 2: Convert to fraction form
    329,922.33/494,879.18 = 80,606.49/x
  3. Step 3: Cross multiply
    329,922.33x = 494,879.18 × 80,606.49
  4. Step 4: Simplify right side
    329,922.33x = 39,890,473,270.85
  5. Step 5: Solve for x
    x = 39,890,473,270.85/329,922.33
  6. Step 6: Final answer
    x = 120,908.68

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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.