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Finding the Fourth Proportional to 220,015.75, 303,621.93 and 119,413.75

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Solution

The fourth proportional to 220,015.75, 303,621.93 and 119,413.75 is: 164,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,015.75 : 303,621.93 = 119,413.75 : x
  2. Step 2: Convert to fraction form
    220,015.75/303,621.93 = 119,413.75/x
  3. Step 3: Cross multiply
    220,015.75x = 303,621.93 × 119,413.75
  4. Step 4: Simplify right side
    220,015.75x = 36,256,633,243.54
  5. Step 5: Solve for x
    x = 36,256,633,243.54/220,015.75
  6. Step 6: Final answer
    x = 164,791.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.