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Finding the Fourth Proportional to 264,786.99, 365,408.49 and 143,928.56

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Solution

The fourth proportional to 264,786.99, 365,408.49 and 143,928.56 is: 198,622.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,786.99 : 365,408.49 = 143,928.56 : x
  2. Step 2: Convert to fraction form
    264,786.99/365,408.49 = 143,928.56/x
  3. Step 3: Cross multiply
    264,786.99x = 365,408.49 × 143,928.56
  4. Step 4: Simplify right side
    264,786.99x = 52,592,715,950.43
  5. Step 5: Solve for x
    x = 52,592,715,950.43/264,786.99
  6. Step 6: Final answer
    x = 198,622.73

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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.