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Finding the Fourth Proportional to 322,418.94, 482,890.90 and 154,057.61

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Solution

The fourth proportional to 322,418.94, 482,890.90 and 154,057.61 is: 230,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,418.94 : 482,890.90 = 154,057.61 : x
  2. Step 2: Convert to fraction form
    322,418.94/482,890.90 = 154,057.61/x
  3. Step 3: Cross multiply
    322,418.94x = 482,890.90 × 154,057.61
  4. Step 4: Simplify right side
    322,418.94x = 74,393,017,944.75
  5. Step 5: Solve for x
    x = 74,393,017,944.75/322,418.94
  6. Step 6: Final answer
    x = 230,734.02

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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.