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Finding the Fourth Proportional to 329,632.70, 494,449.05 and 119,221.43

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Solution

The fourth proportional to 329,632.70, 494,449.05 and 119,221.43 is: 178,832.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,632.70 : 494,449.05 = 119,221.43 : x
  2. Step 2: Convert to fraction form
    329,632.70/494,449.05 = 119,221.43/x
  3. Step 3: Cross multiply
    329,632.70x = 494,449.05 × 119,221.43
  4. Step 4: Simplify right side
    329,632.70x = 58,948,922,803.14
  5. Step 5: Solve for x
    x = 58,948,922,803.14/329,632.70
  6. Step 6: Final answer
    x = 178,832.15

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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.