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Finding the Fourth Proportional to 170,413.80, 255,620.70 and 96,685.80

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Solution

The fourth proportional to 170,413.80, 255,620.70 and 96,685.80 is: 145,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,413.80 : 255,620.70 = 96,685.80 : x
  2. Step 2: Convert to fraction form
    170,413.80/255,620.70 = 96,685.80/x
  3. Step 3: Cross multiply
    170,413.80x = 255,620.70 × 96,685.80
  4. Step 4: Simplify right side
    170,413.80x = 24,714,891,876.06
  5. Step 5: Solve for x
    x = 24,714,891,876.06/170,413.80
  6. Step 6: Final answer
    x = 145,028.70

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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.