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Finding the Fourth Proportional to 168,942.20, 253,413.30 and 163,037.30

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Solution

The fourth proportional to 168,942.20, 253,413.30 and 163,037.30 is: 244,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,942.20 : 253,413.30 = 163,037.30 : x
  2. Step 2: Convert to fraction form
    168,942.20/253,413.30 = 163,037.30/x
  3. Step 3: Cross multiply
    168,942.20x = 253,413.30 × 163,037.30
  4. Step 4: Simplify right side
    168,942.20x = 41,315,820,216.09
  5. Step 5: Solve for x
    x = 41,315,820,216.09/168,942.20
  6. Step 6: Final answer
    x = 244,555.95

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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.