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Finding the Fourth Proportional to 84,563.60, 126,835.32 and 22,238.96

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Solution

The fourth proportional to 84,563.60, 126,835.32 and 22,238.96 is: 33,355.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,563.60 : 126,835.32 = 22,238.96 : x
  2. Step 2: Convert to fraction form
    84,563.60/126,835.32 = 22,238.96/x
  3. Step 3: Cross multiply
    84,563.60x = 126,835.32 × 22,238.96
  4. Step 4: Simplify right side
    84,563.60x = 2,820,685,608.07
  5. Step 5: Solve for x
    x = 2,820,685,608.07/84,563.60
  6. Step 6: Final answer
    x = 33,355.79

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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.