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Finding the Fourth Proportional to 100,380.94, 150,594.12 and 33,819.26

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Solution

The fourth proportional to 100,380.94, 150,594.12 and 33,819.26 is: 50,736.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,380.94 : 150,594.12 = 33,819.26 : x
  2. Step 2: Convert to fraction form
    100,380.94/150,594.12 = 33,819.26/x
  3. Step 3: Cross multiply
    100,380.94x = 150,594.12 × 33,819.26
  4. Step 4: Simplify right side
    100,380.94x = 5,092,980,945.78
  5. Step 5: Solve for x
    x = 5,092,980,945.78/100,380.94
  6. Step 6: Final answer
    x = 50,736.53

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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.