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Finding the Fourth Proportional to 81,552.56, 122,329.04 and 22,389.04

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Solution

The fourth proportional to 81,552.56, 122,329.04 and 22,389.04 is: 33,583.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,552.56 : 122,329.04 = 22,389.04 : x
  2. Step 2: Convert to fraction form
    81,552.56/122,329.04 = 22,389.04/x
  3. Step 3: Cross multiply
    81,552.56x = 122,329.04 × 22,389.04
  4. Step 4: Simplify right side
    81,552.56x = 2,738,829,769.72
  5. Step 5: Solve for x
    x = 2,738,829,769.72/81,552.56
  6. Step 6: Final answer
    x = 33,583.61

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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.