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Finding the Fourth Proportional to 220,765.14, 332,622.77 and 199,731.87

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Solution

The fourth proportional to 220,765.14, 332,622.77 and 199,731.87 is: 300,932.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,765.14 : 332,622.77 = 199,731.87 : x
  2. Step 2: Convert to fraction form
    220,765.14/332,622.77 = 199,731.87/x
  3. Step 3: Cross multiply
    220,765.14x = 332,622.77 × 199,731.87
  4. Step 4: Simplify right side
    220,765.14x = 66,435,366,858.02
  5. Step 5: Solve for x
    x = 66,435,366,858.02/220,765.14
  6. Step 6: Final answer
    x = 300,932.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.