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Finding the Fourth Proportional to 133,745.40, 200,571.54 and 53,759.61

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Solution

The fourth proportional to 133,745.40, 200,571.54 and 53,759.61 is: 80,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,745.40 : 200,571.54 = 53,759.61 : x
  2. Step 2: Convert to fraction form
    133,745.40/200,571.54 = 53,759.61/x
  3. Step 3: Cross multiply
    133,745.40x = 200,571.54 × 53,759.61
  4. Step 4: Simplify right side
    133,745.40x = 10,782,647,767.50
  5. Step 5: Solve for x
    x = 10,782,647,767.50/133,745.40
  6. Step 6: Final answer
    x = 80,620.70

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1.5x scale

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.