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Finding the Fourth Proportional to 72,394.20, 108,524.07 and 28,049.94

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Solution

The fourth proportional to 72,394.20, 108,524.07 and 28,049.94 is: 42,048.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,394.20 : 108,524.07 = 28,049.94 : x
  2. Step 2: Convert to fraction form
    72,394.20/108,524.07 = 28,049.94/x
  3. Step 3: Cross multiply
    72,394.20x = 108,524.07 × 28,049.94
  4. Step 4: Simplify right side
    72,394.20x = 3,044,093,652.06
  5. Step 5: Solve for x
    x = 3,044,093,652.06/72,394.20
  6. Step 6: Final answer
    x = 42,048.86

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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.