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Finding the Fourth Proportional to 329,619.75, 494,136.39 and 119,210.91

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Solution

The fourth proportional to 329,619.75, 494,136.39 and 119,210.91 is: 178,710.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,619.75 : 494,136.39 = 119,210.91 : x
  2. Step 2: Convert to fraction form
    329,619.75/494,136.39 = 119,210.91/x
  3. Step 3: Cross multiply
    329,619.75x = 494,136.39 × 119,210.91
  4. Step 4: Simplify right side
    329,619.75x = 58,906,448,716.01
  5. Step 5: Solve for x
    x = 58,906,448,716.01/329,619.75
  6. Step 6: Final answer
    x = 178,710.31

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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.