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Finding the Fourth Proportional to 150,942.40, 226,413.60 and 91,893.40

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Solution

The fourth proportional to 150,942.40, 226,413.60 and 91,893.40 is: 137,840.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,942.40 : 226,413.60 = 91,893.40 : x
  2. Step 2: Convert to fraction form
    150,942.40/226,413.60 = 91,893.40/x
  3. Step 3: Cross multiply
    150,942.40x = 226,413.60 × 91,893.40
  4. Step 4: Simplify right side
    150,942.40x = 20,805,915,510.24
  5. Step 5: Solve for x
    x = 20,805,915,510.24/150,942.40
  6. Step 6: Final answer
    x = 137,840.10

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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.