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Finding the Fourth Proportional to 100,367.85, 150,551.82 and 25,493.61

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Solution

The fourth proportional to 100,367.85, 150,551.82 and 25,493.61 is: 38,240.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,367.85 : 150,551.82 = 25,493.61 : x
  2. Step 2: Convert to fraction form
    100,367.85/150,551.82 = 25,493.61/x
  3. Step 3: Cross multiply
    100,367.85x = 150,551.82 × 25,493.61
  4. Step 4: Simplify right side
    100,367.85x = 3,838,109,383.87
  5. Step 5: Solve for x
    x = 3,838,109,383.87/100,367.85
  6. Step 6: Final answer
    x = 38,240.43

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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.