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Finding the Fourth Proportional to 179,626.80, 269,148.60 and 112,947.60

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Solution

The fourth proportional to 179,626.80, 269,148.60 and 112,947.60 is: 169,238.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,626.80 : 269,148.60 = 112,947.60 : x
  2. Step 2: Convert to fraction form
    179,626.80/269,148.60 = 112,947.60/x
  3. Step 3: Cross multiply
    179,626.80x = 269,148.60 × 112,947.60
  4. Step 4: Simplify right side
    179,626.80x = 30,399,688,413.36
  5. Step 5: Solve for x
    x = 30,399,688,413.36/179,626.80
  6. Step 6: Final answer
    x = 169,238.04

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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.