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Finding the Fourth Proportional to 79,469.56, 119,033.70 and 74,816.92

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Solution

The fourth proportional to 79,469.56, 119,033.70 and 74,816.92 is: 112,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,469.56 : 119,033.70 = 74,816.92 : x
  2. Step 2: Convert to fraction form
    79,469.56/119,033.70 = 74,816.92/x
  3. Step 3: Cross multiply
    79,469.56x = 119,033.70 × 74,816.92
  4. Step 4: Simplify right side
    79,469.56x = 8,905,734,810.20
  5. Step 5: Solve for x
    x = 8,905,734,810.20/79,469.56
  6. Step 6: Final answer
    x = 112,064.73

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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.