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Finding the Fourth Proportional to 85,806.84, 118,413.36 and 48,081.36

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Solution

The fourth proportional to 85,806.84, 118,413.36 and 48,081.36 is: 66,352.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,806.84 : 118,413.36 = 48,081.36 : x
  2. Step 2: Convert to fraction form
    85,806.84/118,413.36 = 48,081.36/x
  3. Step 3: Cross multiply
    85,806.84x = 118,413.36 × 48,081.36
  4. Step 4: Simplify right side
    85,806.84x = 5,693,475,390.97
  5. Step 5: Solve for x
    x = 5,693,475,390.97/85,806.84
  6. Step 6: Final answer
    x = 66,352.23

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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.