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Finding the Fourth Proportional to 100,633.50, 150,955.38 and 25,754.27

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Solution

The fourth proportional to 100,633.50, 150,955.38 and 25,754.27 is: 38,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,633.50 : 150,955.38 = 25,754.27 : x
  2. Step 2: Convert to fraction form
    100,633.50/150,955.38 = 25,754.27/x
  3. Step 3: Cross multiply
    100,633.50x = 150,955.38 × 25,754.27
  4. Step 4: Simplify right side
    100,633.50x = 3,887,744,859.70
  5. Step 5: Solve for x
    x = 3,887,744,859.70/100,633.50
  6. Step 6: Final answer
    x = 38,632.71

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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.