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Finding the Fourth Proportional to 67,119.80, 100,725.66 and 27,676.58

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Solution

The fourth proportional to 67,119.80, 100,725.66 and 27,676.58 is: 41,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,119.80 : 100,725.66 = 27,676.58 : x
  2. Step 2: Convert to fraction form
    67,119.80/100,725.66 = 27,676.58/x
  3. Step 3: Cross multiply
    67,119.80x = 100,725.66 × 27,676.58
  4. Step 4: Simplify right side
    67,119.80x = 2,787,741,283.41
  5. Step 5: Solve for x
    x = 2,787,741,283.41/67,119.80
  6. Step 6: Final answer
    x = 41,533.82

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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.