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Finding the Fourth Proportional to 111,995.29, 167,908.46 and 67,611.49

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Solution

The fourth proportional to 111,995.29, 167,908.46 and 67,611.49 is: 101,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,995.29 : 167,908.46 = 67,611.49 : x
  2. Step 2: Convert to fraction form
    111,995.29/167,908.46 = 67,611.49/x
  3. Step 3: Cross multiply
    111,995.29x = 167,908.46 × 67,611.49
  4. Step 4: Simplify right side
    111,995.29x = 11,352,540,406.38
  5. Step 5: Solve for x
    x = 11,352,540,406.38/111,995.29
  6. Step 6: Final answer
    x = 101,366.23

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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.