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Finding the Fourth Proportional to 88,413.69, 132,621.93 and 49,219.92

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Solution

The fourth proportional to 88,413.69, 132,621.93 and 49,219.92 is: 73,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,413.69 : 132,621.93 = 49,219.92 : x
  2. Step 2: Convert to fraction form
    88,413.69/132,621.93 = 49,219.92/x
  3. Step 3: Cross multiply
    88,413.69x = 132,621.93 × 49,219.92
  4. Step 4: Simplify right side
    88,413.69x = 6,527,640,121.74
  5. Step 5: Solve for x
    x = 6,527,640,121.74/88,413.69
  6. Step 6: Final answer
    x = 73,830.65

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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.