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Finding the Fourth Proportional to 227,969.78, 341,745.42 and 87,622.70

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Solution

The fourth proportional to 227,969.78, 341,745.42 and 87,622.70 is: 131,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,969.78 : 341,745.42 = 87,622.70 : x
  2. Step 2: Convert to fraction form
    227,969.78/341,745.42 = 87,622.70/x
  3. Step 3: Cross multiply
    227,969.78x = 341,745.42 × 87,622.70
  4. Step 4: Simplify right side
    227,969.78x = 29,944,656,413.03
  5. Step 5: Solve for x
    x = 29,944,656,413.03/227,969.78
  6. Step 6: Final answer
    x = 131,353.62

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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.