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Finding the Fourth Proportional to 329,805.08, 494,780.21 and 187,717.21

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Solution

The fourth proportional to 329,805.08, 494,780.21 and 187,717.21 is: 281,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,805.08 : 494,780.21 = 187,717.21 : x
  2. Step 2: Convert to fraction form
    329,805.08/494,780.21 = 187,717.21/x
  3. Step 3: Cross multiply
    329,805.08x = 494,780.21 × 187,717.21
  4. Step 4: Simplify right side
    329,805.08x = 92,878,760,584.41
  5. Step 5: Solve for x
    x = 92,878,760,584.41/329,805.08
  6. Step 6: Final answer
    x = 281,617.13

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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.