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Finding the Fourth Proportional to 118,891.85, 164,087.51 and 73,584.36

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Solution

The fourth proportional to 118,891.85, 164,087.51 and 73,584.36 is: 101,556.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,891.85 : 164,087.51 = 73,584.36 : x
  2. Step 2: Convert to fraction form
    118,891.85/164,087.51 = 73,584.36/x
  3. Step 3: Cross multiply
    118,891.85x = 164,087.51 × 73,584.36
  4. Step 4: Simplify right side
    118,891.85x = 12,074,274,039.42
  5. Step 5: Solve for x
    x = 12,074,274,039.42/118,891.85
  6. Step 6: Final answer
    x = 101,556.79

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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.