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Finding the Fourth Proportional to 67,281.86, 100,934.67 and 27,816.86

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Solution

The fourth proportional to 67,281.86, 100,934.67 and 27,816.86 is: 41,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,281.86 : 100,934.67 = 27,816.86 : x
  2. Step 2: Convert to fraction form
    67,281.86/100,934.67 = 27,816.86/x
  3. Step 3: Cross multiply
    67,281.86x = 100,934.67 × 27,816.86
  4. Step 4: Simplify right side
    67,281.86x = 2,807,685,584.54
  5. Step 5: Solve for x
    x = 2,807,685,584.54/67,281.86
  6. Step 6: Final answer
    x = 41,730.20

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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.