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Finding the Fourth Proportional to 69,226.88, 103,842.54 and 21,842.41

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Solution

The fourth proportional to 69,226.88, 103,842.54 and 21,842.41 is: 32,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,226.88 : 103,842.54 = 21,842.41 : x
  2. Step 2: Convert to fraction form
    69,226.88/103,842.54 = 21,842.41/x
  3. Step 3: Cross multiply
    69,226.88x = 103,842.54 × 21,842.41
  4. Step 4: Simplify right side
    69,226.88x = 2,268,171,334.12
  5. Step 5: Solve for x
    x = 2,268,171,334.12/69,226.88
  6. Step 6: Final answer
    x = 32,764.32

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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.