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Finding the Fourth Proportional to 53,413.60, 80,239.20 and 44,665.60

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Solution

The fourth proportional to 53,413.60, 80,239.20 and 44,665.60 is: 67,097.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,413.60 : 80,239.20 = 44,665.60 : x
  2. Step 2: Convert to fraction form
    53,413.60/80,239.20 = 44,665.60/x
  3. Step 3: Cross multiply
    53,413.60x = 80,239.20 × 44,665.60
  4. Step 4: Simplify right side
    53,413.60x = 3,583,932,011.52
  5. Step 5: Solve for x
    x = 3,583,932,011.52/53,413.60
  6. Step 6: Final answer
    x = 67,097.74

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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.