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Finding the Fourth Proportional to 275,570.40, 413,413.20 and 88,600.80

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Solution

The fourth proportional to 275,570.40, 413,413.20 and 88,600.80 is: 132,919.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,570.40 : 413,413.20 = 88,600.80 : x
  2. Step 2: Convert to fraction form
    275,570.40/413,413.20 = 88,600.80/x
  3. Step 3: Cross multiply
    275,570.40x = 413,413.20 × 88,600.80
  4. Step 4: Simplify right side
    275,570.40x = 36,628,740,250.56
  5. Step 5: Solve for x
    x = 36,628,740,250.56/275,570.40
  6. Step 6: Final answer
    x = 132,919.72

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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.