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Finding the Fourth Proportional to 135,856.80, 203,794.20 and 36,015.60

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Solution

The fourth proportional to 135,856.80, 203,794.20 and 36,015.60 is: 54,025.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,856.80 : 203,794.20 = 36,015.60 : x
  2. Step 2: Convert to fraction form
    135,856.80/203,794.20 = 36,015.60/x
  3. Step 3: Cross multiply
    135,856.80x = 203,794.20 × 36,015.60
  4. Step 4: Simplify right side
    135,856.80x = 7,339,770,389.52
  5. Step 5: Solve for x
    x = 7,339,770,389.52/135,856.80
  6. Step 6: Final answer
    x = 54,025.79

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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.