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Finding the Fourth Proportional to 92,965.76, 139,413.52 and 33,786.72

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Solution

The fourth proportional to 92,965.76, 139,413.52 and 33,786.72 is: 50,667.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,965.76 : 139,413.52 = 33,786.72 : x
  2. Step 2: Convert to fraction form
    92,965.76/139,413.52 = 33,786.72/x
  3. Step 3: Cross multiply
    92,965.76x = 139,413.52 × 33,786.72
  4. Step 4: Simplify right side
    92,965.76x = 4,710,325,564.45
  5. Step 5: Solve for x
    x = 4,710,325,564.45/92,965.76
  6. Step 6: Final answer
    x = 50,667.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.