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Finding the Fourth Proportional to 64,582,222.80, 96,763,711.80 and 38,969,413.20

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Solution

The fourth proportional to 64,582,222.80, 96,763,711.80 and 38,969,413.20 is: 58,387,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,582,222.80 : 96,763,711.80 = 38,969,413.20 : x
  2. Step 2: Convert to fraction form
    64,582,222.80/96,763,711.80 = 38,969,413.20/x
  3. Step 3: Cross multiply
    64,582,222.80x = 96,763,711.80 × 38,969,413.20
  4. Step 4: Simplify right side
    64,582,222.80x = 3,770,825,067,899,916
  5. Step 5: Solve for x
    x = 3,770,825,067,899,916/64,582,222.80
  6. Step 6: Final answer
    x = 58,387,972.80

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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.