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Finding the Fourth Proportional to 118,846.77, 164,013.03 and 67,867.80

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Solution

The fourth proportional to 118,846.77, 164,013.03 and 67,867.80 is: 93,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,846.77 : 164,013.03 = 67,867.80 : x
  2. Step 2: Convert to fraction form
    118,846.77/164,013.03 = 67,867.80/x
  3. Step 3: Cross multiply
    118,846.77x = 164,013.03 × 67,867.80
  4. Step 4: Simplify right side
    118,846.77x = 11,131,203,517.43
  5. Step 5: Solve for x
    x = 11,131,203,517.43/118,846.77
  6. Step 6: Final answer
    x = 93,660.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.