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Finding the Fourth Proportional to 70,753.38, 106,093.53 and 20,826.99

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Solution

The fourth proportional to 70,753.38, 106,093.53 and 20,826.99 is: 31,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,753.38 : 106,093.53 = 20,826.99 : x
  2. Step 2: Convert to fraction form
    70,753.38/106,093.53 = 20,826.99/x
  3. Step 3: Cross multiply
    70,753.38x = 106,093.53 × 20,826.99
  4. Step 4: Simplify right side
    70,753.38x = 2,209,608,888.37
  5. Step 5: Solve for x
    x = 2,209,608,888.37/70,753.38
  6. Step 6: Final answer
    x = 31,229.73

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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.