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Finding the Fourth Proportional to 352,928.76, 529,413.32 and 100,189.48

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Solution

The fourth proportional to 352,928.76, 529,413.32 and 100,189.48 is: 150,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,928.76 : 529,413.32 = 100,189.48 : x
  2. Step 2: Convert to fraction form
    352,928.76/529,413.32 = 100,189.48/x
  3. Step 3: Cross multiply
    352,928.76x = 529,413.32 × 100,189.48
  4. Step 4: Simplify right side
    352,928.76x = 53,041,645,235.87
  5. Step 5: Solve for x
    x = 53,041,645,235.87/352,928.76
  6. Step 6: Final answer
    x = 150,289.95

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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.