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Finding the Fourth Proportional to 52,610.80, 78,883.80 and 30,413.20

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Solution

The fourth proportional to 52,610.80, 78,883.80 and 30,413.20 is: 45,601.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,610.80 : 78,883.80 = 30,413.20 : x
  2. Step 2: Convert to fraction form
    52,610.80/78,883.80 = 30,413.20/x
  3. Step 3: Cross multiply
    52,610.80x = 78,883.80 × 30,413.20
  4. Step 4: Simplify right side
    52,610.80x = 2,399,108,786.16
  5. Step 5: Solve for x
    x = 2,399,108,786.16/52,610.80
  6. Step 6: Final answer
    x = 45,601.07

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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.