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Finding the Fourth Proportional to 67,167.73, 100,747.94 and 20,416.96

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Solution

The fourth proportional to 67,167.73, 100,747.94 and 20,416.96 is: 30,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,167.73 : 100,747.94 = 20,416.96 : x
  2. Step 2: Convert to fraction form
    67,167.73/100,747.94 = 20,416.96/x
  3. Step 3: Cross multiply
    67,167.73x = 100,747.94 × 20,416.96
  4. Step 4: Simplify right side
    67,167.73x = 2,056,966,661.06
  5. Step 5: Solve for x
    x = 2,056,966,661.06/67,167.73
  6. Step 6: Final answer
    x = 30,624.33

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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.