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Finding the Fourth Proportional to 67,190.52, 100,591.20 and 50,620.32

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Solution

The fourth proportional to 67,190.52, 100,591.20 and 50,620.32 is: 75,783.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,190.52 : 100,591.20 = 50,620.32 : x
  2. Step 2: Convert to fraction form
    67,190.52/100,591.20 = 50,620.32/x
  3. Step 3: Cross multiply
    67,190.52x = 100,591.20 × 50,620.32
  4. Step 4: Simplify right side
    67,190.52x = 5,091,958,733.18
  5. Step 5: Solve for x
    x = 5,091,958,733.18/67,190.52
  6. Step 6: Final answer
    x = 75,783.89

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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.