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Finding the Fourth Proportional to 67,270.37, 100,921.41 and 37,708.61

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Solution

The fourth proportional to 67,270.37, 100,921.41 and 37,708.61 is: 56,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,270.37 : 100,921.41 = 37,708.61 : x
  2. Step 2: Convert to fraction form
    67,270.37/100,921.41 = 37,708.61/x
  3. Step 3: Cross multiply
    67,270.37x = 100,921.41 × 37,708.61
  4. Step 4: Simplify right side
    67,270.37x = 3,805,605,585.73
  5. Step 5: Solve for x
    x = 3,805,605,585.73/67,270.37
  6. Step 6: Final answer
    x = 56,571.80

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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.