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Finding the Fourth Proportional to 100,563.99, 150,865.42 and 38,229.63

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Solution

The fourth proportional to 100,563.99, 150,865.42 and 38,229.63 is: 57,351.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,563.99 : 150,865.42 = 38,229.63 : x
  2. Step 2: Convert to fraction form
    100,563.99/150,865.42 = 38,229.63/x
  3. Step 3: Cross multiply
    100,563.99x = 150,865.42 × 38,229.63
  4. Step 4: Simplify right side
    100,563.99x = 5,767,529,186.39
  5. Step 5: Solve for x
    x = 5,767,529,186.39/100,563.99
  6. Step 6: Final answer
    x = 57,351.83

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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.