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Finding the Fourth Proportional to 303,860.45, 419,324.97 and 167,893.85

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Solution

The fourth proportional to 303,860.45, 419,324.97 and 167,893.85 is: 231,692.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,860.45 : 419,324.97 = 167,893.85 : x
  2. Step 2: Convert to fraction form
    303,860.45/419,324.97 = 167,893.85/x
  3. Step 3: Cross multiply
    303,860.45x = 419,324.97 × 167,893.85
  4. Step 4: Simplify right side
    303,860.45x = 70,402,083,614.43
  5. Step 5: Solve for x
    x = 70,402,083,614.43/303,860.45
  6. Step 6: Final answer
    x = 231,692.16

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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.