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Finding the Fourth Proportional to 235,413.40, 352,659.30 and 141,640.60

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Solution

The fourth proportional to 235,413.40, 352,659.30 and 141,640.60 is: 212,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,413.40 : 352,659.30 = 141,640.60 : x
  2. Step 2: Convert to fraction form
    235,413.40/352,659.30 = 141,640.60/x
  3. Step 3: Cross multiply
    235,413.40x = 352,659.30 × 141,640.60
  4. Step 4: Simplify right side
    235,413.40x = 49,950,874,847.58
  5. Step 5: Solve for x
    x = 49,950,874,847.58/235,413.40
  6. Step 6: Final answer
    x = 212,183.65

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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.