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Finding the Fourth Proportional to 218,183.78, 327,281.13 and 60,413.60

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Solution

The fourth proportional to 218,183.78, 327,281.13 and 60,413.60 is: 90,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,183.78 : 327,281.13 = 60,413.60 : x
  2. Step 2: Convert to fraction form
    218,183.78/327,281.13 = 60,413.60/x
  3. Step 3: Cross multiply
    218,183.78x = 327,281.13 × 60,413.60
  4. Step 4: Simplify right side
    218,183.78x = 19,772,230,422.53
  5. Step 5: Solve for x
    x = 19,772,230,422.53/218,183.78
  6. Step 6: Final answer
    x = 90,621.91

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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.