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Finding the Fourth Proportional to 101,468.82, 140,017.44 and 68,696.57

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Solution

The fourth proportional to 101,468.82, 140,017.44 and 68,696.57 is: 94,794.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,468.82 : 140,017.44 = 68,696.57 : x
  2. Step 2: Convert to fraction form
    101,468.82/140,017.44 = 68,696.57/x
  3. Step 3: Cross multiply
    101,468.82x = 140,017.44 × 68,696.57
  4. Step 4: Simplify right side
    101,468.82x = 9,618,717,168.09
  5. Step 5: Solve for x
    x = 9,618,717,168.09/101,468.82
  6. Step 6: Final answer
    x = 94,794.81

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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.