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Finding the Fourth Proportional to 67,310.46, 100,854.09 and 40,935.42

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Solution

The fourth proportional to 67,310.46, 100,854.09 and 40,935.42 is: 61,335.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,310.46 : 100,854.09 = 40,935.42 : x
  2. Step 2: Convert to fraction form
    67,310.46/100,854.09 = 40,935.42/x
  3. Step 3: Cross multiply
    67,310.46x = 100,854.09 × 40,935.42
  4. Step 4: Simplify right side
    67,310.46x = 4,128,504,532.87
  5. Step 5: Solve for x
    x = 4,128,504,532.87/67,310.46
  6. Step 6: Final answer
    x = 61,335.26

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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.