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Finding the Fourth Proportional to 84,487.86, 126,722.07 and 22,163.22

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Solution

The fourth proportional to 84,487.86, 126,722.07 and 22,163.22 is: 33,242.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,487.86 : 126,722.07 = 22,163.22 : x
  2. Step 2: Convert to fraction form
    84,487.86/126,722.07 = 22,163.22/x
  3. Step 3: Cross multiply
    84,487.86x = 126,722.07 × 22,163.22
  4. Step 4: Simplify right side
    84,487.86x = 2,808,569,116.27
  5. Step 5: Solve for x
    x = 2,808,569,116.27/84,487.86
  6. Step 6: Final answer
    x = 33,242.28

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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.