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Finding the Fourth Proportional to 220,767.24, 331,200.24 and 80,525.87

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Solution

The fourth proportional to 220,767.24, 331,200.24 and 80,525.87 is: 120,806.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,767.24 : 331,200.24 = 80,525.87 : x
  2. Step 2: Convert to fraction form
    220,767.24/331,200.24 = 80,525.87/x
  3. Step 3: Cross multiply
    220,767.24x = 331,200.24 × 80,525.87
  4. Step 4: Simplify right side
    220,767.24x = 26,670,185,814.21
  5. Step 5: Solve for x
    x = 26,670,185,814.21/220,767.24
  6. Step 6: Final answer
    x = 120,806.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.