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Finding the Fourth Proportional to 382,046.84, 573,037.26 and 129,321.92

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Solution

The fourth proportional to 382,046.84, 573,037.26 and 129,321.92 is: 193,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,046.84 : 573,037.26 = 129,321.92 : x
  2. Step 2: Convert to fraction form
    382,046.84/573,037.26 = 129,321.92/x
  3. Step 3: Cross multiply
    382,046.84x = 573,037.26 × 129,321.92
  4. Step 4: Simplify right side
    382,046.84x = 74,106,278,694.74
  5. Step 5: Solve for x
    x = 74,106,278,694.74/382,046.84
  6. Step 6: Final answer
    x = 193,971.71

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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.