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Finding the Fourth Proportional to 79,236.68, 118,865.34 and 25,910.03

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Solution

The fourth proportional to 79,236.68, 118,865.34 and 25,910.03 is: 38,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,236.68 : 118,865.34 = 25,910.03 : x
  2. Step 2: Convert to fraction form
    79,236.68/118,865.34 = 25,910.03/x
  3. Step 3: Cross multiply
    79,236.68x = 118,865.34 × 25,910.03
  4. Step 4: Simplify right side
    79,236.68x = 3,079,804,822.52
  5. Step 5: Solve for x
    x = 3,079,804,822.52/79,236.68
  6. Step 6: Final answer
    x = 38,868.43

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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.