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Finding the Fourth Proportional to 220,634.86, 330,639.42 and 92,413.01

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Solution

The fourth proportional to 220,634.86, 330,639.42 and 92,413.01 is: 138,488.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,634.86 : 330,639.42 = 92,413.01 : x
  2. Step 2: Convert to fraction form
    220,634.86/330,639.42 = 92,413.01/x
  3. Step 3: Cross multiply
    220,634.86x = 330,639.42 × 92,413.01
  4. Step 4: Simplify right side
    220,634.86x = 30,555,384,026.85
  5. Step 5: Solve for x
    x = 30,555,384,026.85/220,634.86
  6. Step 6: Final answer
    x = 138,488.47

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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.