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Finding the Fourth Proportional to 329,705.67, 494,553.11 and 105,063.09

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Solution

The fourth proportional to 329,705.67, 494,553.11 and 105,063.09 is: 157,592.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,705.67 : 494,553.11 = 105,063.09 : x
  2. Step 2: Convert to fraction form
    329,705.67/494,553.11 = 105,063.09/x
  3. Step 3: Cross multiply
    329,705.67x = 494,553.11 × 105,063.09
  4. Step 4: Simplify right side
    329,705.67x = 51,959,277,380.39
  5. Step 5: Solve for x
    x = 51,959,277,380.39/329,705.67
  6. Step 6: Final answer
    x = 157,592.91

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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.