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Finding the Fourth Proportional to 366,906.10, 550,413.83 and 130,228.96

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Solution

The fourth proportional to 366,906.10, 550,413.83 and 130,228.96 is: 195,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,906.10 : 550,413.83 = 130,228.96 : x
  2. Step 2: Convert to fraction form
    366,906.10/550,413.83 = 130,228.96/x
  3. Step 3: Cross multiply
    366,906.10x = 550,413.83 × 130,228.96
  4. Step 4: Simplify right side
    366,906.10x = 71,679,820,650.52
  5. Step 5: Solve for x
    x = 71,679,820,650.52/366,906.10
  6. Step 6: Final answer
    x = 195,362.85

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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.