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Finding the Fourth Proportional to 120,660.71, 181,017.08 and 36,413.83

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Solution

The fourth proportional to 120,660.71, 181,017.08 and 36,413.83 is: 54,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,660.71 : 181,017.08 = 36,413.83 : x
  2. Step 2: Convert to fraction form
    120,660.71/181,017.08 = 36,413.83/x
  3. Step 3: Cross multiply
    120,660.71x = 181,017.08 × 36,413.83
  4. Step 4: Simplify right side
    120,660.71x = 6,591,524,849.86
  5. Step 5: Solve for x
    x = 6,591,524,849.86/120,660.71
  6. Step 6: Final answer
    x = 54,628.59

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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.