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Finding the Fourth Proportional to 307,183.98, 423,916.71 and 169,367.85

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Solution

The fourth proportional to 307,183.98, 423,916.71 and 169,367.85 is: 233,729.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,183.98 : 423,916.71 = 169,367.85 : x
  2. Step 2: Convert to fraction form
    307,183.98/423,916.71 = 169,367.85/x
  3. Step 3: Cross multiply
    307,183.98x = 423,916.71 × 169,367.85
  4. Step 4: Simplify right side
    307,183.98x = 71,797,861,751.77
  5. Step 5: Solve for x
    x = 71,797,861,751.77/307,183.98
  6. Step 6: Final answer
    x = 233,729.19

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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.