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Finding the Fourth Proportional to 181,608.66, 272,413.24 and 86,816.57

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Solution

The fourth proportional to 181,608.66, 272,413.24 and 86,816.57 is: 130,224.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,608.66 : 272,413.24 = 86,816.57 : x
  2. Step 2: Convert to fraction form
    181,608.66/272,413.24 = 86,816.57/x
  3. Step 3: Cross multiply
    181,608.66x = 272,413.24 × 86,816.57
  4. Step 4: Simplify right side
    181,608.66x = 23,649,981,540.28
  5. Step 5: Solve for x
    x = 23,649,981,540.28/181,608.66
  6. Step 6: Final answer
    x = 130,224.97

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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.