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Finding the Fourth Proportional to 303,658.88, 419,065.85 and 167,692.48

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Solution

The fourth proportional to 303,658.88, 419,065.85 and 167,692.48 is: 231,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,658.88 : 419,065.85 = 167,692.48 : x
  2. Step 2: Convert to fraction form
    303,658.88/419,065.85 = 167,692.48/x
  3. Step 3: Cross multiply
    303,658.88x = 419,065.85 × 167,692.48
  4. Step 4: Simplify right side
    303,658.88x = 70,274,191,041.37
  5. Step 5: Solve for x
    x = 70,274,191,041.37/303,658.88
  6. Step 6: Final answer
    x = 231,424.79

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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.