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Finding the Fourth Proportional to 362,216.53, 543,103.17 and 172,734.85

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Solution

The fourth proportional to 362,216.53, 543,103.17 and 172,734.85 is: 258,996.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,216.53 : 543,103.17 = 172,734.85 : x
  2. Step 2: Convert to fraction form
    362,216.53/543,103.17 = 172,734.85/x
  3. Step 3: Cross multiply
    362,216.53x = 543,103.17 × 172,734.85
  4. Step 4: Simplify right side
    362,216.53x = 93,812,844,604.47
  5. Step 5: Solve for x
    x = 93,812,844,604.47/362,216.53
  6. Step 6: Final answer
    x = 258,996.59

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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.