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Finding the Fourth Proportional to 40,155.21, 55,413.54 and 22,250.16

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Solution

The fourth proportional to 40,155.21, 55,413.54 and 22,250.16 is: 30,704.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,155.21 : 55,413.54 = 22,250.16 : x
  2. Step 2: Convert to fraction form
    40,155.21/55,413.54 = 22,250.16/x
  3. Step 3: Cross multiply
    40,155.21x = 55,413.54 × 22,250.16
  4. Step 4: Simplify right side
    40,155.21x = 1,232,960,131.17
  5. Step 5: Solve for x
    x = 1,232,960,131.17/40,155.21
  6. Step 6: Final answer
    x = 30,704.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.