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Finding the Fourth Proportional to 115,992.80, 160,067.41 and 67,591.65

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Solution

The fourth proportional to 115,992.80, 160,067.41 and 67,591.65 is: 93,274.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,992.80 : 160,067.41 = 67,591.65 : x
  2. Step 2: Convert to fraction form
    115,992.80/160,067.41 = 67,591.65/x
  3. Step 3: Cross multiply
    115,992.80x = 160,067.41 × 67,591.65
  4. Step 4: Simplify right side
    115,992.80x = 10,819,220,184.15
  5. Step 5: Solve for x
    x = 10,819,220,184.15/115,992.80
  6. Step 6: Final answer
    x = 93,274.93

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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.