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Finding the Fourth Proportional to 69,081.75, 103,639.64 and 22,334.63

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Solution

The fourth proportional to 69,081.75, 103,639.64 and 22,334.63 is: 33,507.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,081.75 : 103,639.64 = 22,334.63 : x
  2. Step 2: Convert to fraction form
    69,081.75/103,639.64 = 22,334.63/x
  3. Step 3: Cross multiply
    69,081.75x = 103,639.64 × 22,334.63
  4. Step 4: Simplify right side
    69,081.75x = 2,314,753,012.73
  5. Step 5: Solve for x
    x = 2,314,753,012.73/69,081.75
  6. Step 6: Final answer
    x = 33,507.45

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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.