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Finding the Fourth Proportional to 179,660.40, 269,555.40 and 74,511.60

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Solution

The fourth proportional to 179,660.40, 269,555.40 and 74,511.60 is: 111,794.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,660.40 : 269,555.40 = 74,511.60 : x
  2. Step 2: Convert to fraction form
    179,660.40/269,555.40 = 74,511.60/x
  3. Step 3: Cross multiply
    179,660.40x = 269,555.40 × 74,511.60
  4. Step 4: Simplify right side
    179,660.40x = 20,085,004,142.64
  5. Step 5: Solve for x
    x = 20,085,004,142.64/179,660.40
  6. Step 6: Final answer
    x = 111,794.27

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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.