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Finding the Fourth Proportional to 331,571.06, 496,938.06 and 141,806.96

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Solution

The fourth proportional to 331,571.06, 496,938.06 and 141,806.96 is: 212,531.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,571.06 : 496,938.06 = 141,806.96 : x
  2. Step 2: Convert to fraction form
    331,571.06/496,938.06 = 141,806.96/x
  3. Step 3: Cross multiply
    331,571.06x = 496,938.06 × 141,806.96
  4. Step 4: Simplify right side
    331,571.06x = 70,469,275,596.90
  5. Step 5: Solve for x
    x = 70,469,275,596.90/331,571.06
  6. Step 6: Final answer
    x = 212,531.44

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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.