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Finding the Fourth Proportional to 69,203.78, 103,820.26 and 22,453.04

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Solution

The fourth proportional to 69,203.78, 103,820.26 and 22,453.04 is: 33,684.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,203.78 : 103,820.26 = 22,453.04 : x
  2. Step 2: Convert to fraction form
    69,203.78/103,820.26 = 22,453.04/x
  3. Step 3: Cross multiply
    69,203.78x = 103,820.26 × 22,453.04
  4. Step 4: Simplify right side
    69,203.78x = 2,331,080,450.59
  5. Step 5: Solve for x
    x = 2,331,080,450.59/69,203.78
  6. Step 6: Final answer
    x = 33,684.29

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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.