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Finding the Fourth Proportional to 71,993.74, 108,011.33 and 22,081.16

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Solution

The fourth proportional to 71,993.74, 108,011.33 and 22,081.16 is: 33,128.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,993.74 : 108,011.33 = 22,081.16 : x
  2. Step 2: Convert to fraction form
    71,993.74/108,011.33 = 22,081.16/x
  3. Step 3: Cross multiply
    71,993.74x = 108,011.33 × 22,081.16
  4. Step 4: Simplify right side
    71,993.74x = 2,385,014,864.28
  5. Step 5: Solve for x
    x = 2,385,014,864.28/71,993.74
  6. Step 6: Final answer
    x = 33,128.09

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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.