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Finding the Fourth Proportional to 67,644.05, 101,355.25 and 36,020.54

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Solution

The fourth proportional to 67,644.05, 101,355.25 and 36,020.54 is: 53,971.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,644.05 : 101,355.25 = 36,020.54 : x
  2. Step 2: Convert to fraction form
    67,644.05/101,355.25 = 36,020.54/x
  3. Step 3: Cross multiply
    67,644.05x = 101,355.25 × 36,020.54
  4. Step 4: Simplify right side
    67,644.05x = 3,650,870,149.96
  5. Step 5: Solve for x
    x = 3,650,870,149.96/67,644.05
  6. Step 6: Final answer
    x = 53,971.79

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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.