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Finding the Fourth Proportional to 61,859.88, 92,786.46 and 38,171.94

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Solution

The fourth proportional to 61,859.88, 92,786.46 and 38,171.94 is: 57,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,859.88 : 92,786.46 = 38,171.94 : x
  2. Step 2: Convert to fraction form
    61,859.88/92,786.46 = 38,171.94/x
  3. Step 3: Cross multiply
    61,859.88x = 92,786.46 × 38,171.94
  4. Step 4: Simplify right side
    61,859.88x = 3,541,839,183.93
  5. Step 5: Solve for x
    x = 3,541,839,183.93/61,859.88
  6. Step 6: Final answer
    x = 57,255.84

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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.