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Finding the Fourth Proportional to 137,104.80, 205,657.20 and 119,608.80

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Solution

The fourth proportional to 137,104.80, 205,657.20 and 119,608.80 is: 179,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,104.80 : 205,657.20 = 119,608.80 : x
  2. Step 2: Convert to fraction form
    137,104.80/205,657.20 = 119,608.80/x
  3. Step 3: Cross multiply
    137,104.80x = 205,657.20 × 119,608.80
  4. Step 4: Simplify right side
    137,104.80x = 24,598,410,903.36
  5. Step 5: Solve for x
    x = 24,598,410,903.36/137,104.80
  6. Step 6: Final answer
    x = 179,413.20

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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.