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Finding the Fourth Proportional to 203,441.39, 280,745.84 and 111,560.39

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Solution

The fourth proportional to 203,441.39, 280,745.84 and 111,560.39 is: 153,951.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,441.39 : 280,745.84 = 111,560.39 : x
  2. Step 2: Convert to fraction form
    203,441.39/280,745.84 = 111,560.39/x
  3. Step 3: Cross multiply
    203,441.39x = 280,745.84 × 111,560.39
  4. Step 4: Simplify right side
    203,441.39x = 31,320,114,843.48
  5. Step 5: Solve for x
    x = 31,320,114,843.48/203,441.39
  6. Step 6: Final answer
    x = 153,951.54

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1.5x scale

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.