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Finding the Fourth Proportional to 79,413.92, 109,594.78 and 47,582.13

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Solution

The fourth proportional to 79,413.92, 109,594.78 and 47,582.13 is: 65,665.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,413.92 : 109,594.78 = 47,582.13 : x
  2. Step 2: Convert to fraction form
    79,413.92/109,594.78 = 47,582.13/x
  3. Step 3: Cross multiply
    79,413.92x = 109,594.78 × 47,582.13
  4. Step 4: Simplify right side
    79,413.92x = 5,214,752,950.33
  5. Step 5: Solve for x
    x = 5,214,752,950.33/79,413.92
  6. Step 6: Final answer
    x = 65,665.48

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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.