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Finding the Fourth Proportional to 303,871.50, 419,342.67 and 169,735.50

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Solution

The fourth proportional to 303,871.50, 419,342.67 and 169,735.50 is: 234,234.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,871.50 : 419,342.67 = 169,735.50 : x
  2. Step 2: Convert to fraction form
    303,871.50/419,342.67 = 169,735.50/x
  3. Step 3: Cross multiply
    303,871.50x = 419,342.67 × 169,735.50
  4. Step 4: Simplify right side
    303,871.50x = 71,177,337,763.79
  5. Step 5: Solve for x
    x = 71,177,337,763.79/303,871.50
  6. Step 6: Final answer
    x = 234,234.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.