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Finding the Fourth Proportional to 67,111.62, 100,745.19 and 36,007.62

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Solution

The fourth proportional to 67,111.62, 100,745.19 and 36,007.62 is: 54,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,111.62 : 100,745.19 = 36,007.62 : x
  2. Step 2: Convert to fraction form
    67,111.62/100,745.19 = 36,007.62/x
  3. Step 3: Cross multiply
    67,111.62x = 100,745.19 × 36,007.62
  4. Step 4: Simplify right side
    67,111.62x = 3,627,594,518.35
  5. Step 5: Solve for x
    x = 3,627,594,518.35/67,111.62
  6. Step 6: Final answer
    x = 54,053.15

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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.