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Finding the Fourth Proportional to 74,353.80, 111,529.72 and 18,194.41

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Solution

The fourth proportional to 74,353.80, 111,529.72 and 18,194.41 is: 27,291.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,353.80 : 111,529.72 = 18,194.41 : x
  2. Step 2: Convert to fraction form
    74,353.80/111,529.72 = 18,194.41/x
  3. Step 3: Cross multiply
    74,353.80x = 111,529.72 × 18,194.41
  4. Step 4: Simplify right side
    74,353.80x = 2,029,217,452.87
  5. Step 5: Solve for x
    x = 2,029,217,452.87/74,353.80
  6. Step 6: Final answer
    x = 27,291.38

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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.