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Finding the Fourth Proportional to 55,969,620.80, 83,969,176.80 and 20,064,084.80

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Solution

The fourth proportional to 55,969,620.80, 83,969,176.80 and 20,064,084.80 is: 30,101,413.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,969,620.80 : 83,969,176.80 = 20,064,084.80 : x
  2. Step 2: Convert to fraction form
    55,969,620.80/83,969,176.80 = 20,064,084.80/x
  3. Step 3: Cross multiply
    55,969,620.80x = 83,969,176.80 × 20,064,084.80
  4. Step 4: Simplify right side
    55,969,620.80x = 1,684,764,683,901,392.75
  5. Step 5: Solve for x
    x = 1,684,764,683,901,392.75/55,969,620.80
  6. Step 6: Final answer
    x = 30,101,413.23

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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.