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Finding the Fourth Proportional to 106,960.55, 160,388.87 and 53,629.61

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Solution

The fourth proportional to 106,960.55, 160,388.87 and 53,629.61 is: 80,418.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,960.55 : 160,388.87 = 53,629.61 : x
  2. Step 2: Convert to fraction form
    106,960.55/160,388.87 = 53,629.61/x
  3. Step 3: Cross multiply
    106,960.55x = 160,388.87 × 53,629.61
  4. Step 4: Simplify right side
    106,960.55x = 8,601,591,476.35
  5. Step 5: Solve for x
    x = 8,601,591,476.35/106,960.55
  6. Step 6: Final answer
    x = 80,418.36

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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.