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Finding the Fourth Proportional to 69,351.71, 104,027.59 and 16,761.20

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Solution

The fourth proportional to 69,351.71, 104,027.59 and 16,761.20 is: 25,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,351.71 : 104,027.59 = 16,761.20 : x
  2. Step 2: Convert to fraction form
    69,351.71/104,027.59 = 16,761.20/x
  3. Step 3: Cross multiply
    69,351.71x = 104,027.59 × 16,761.20
  4. Step 4: Simplify right side
    69,351.71x = 1,743,626,742.32
  5. Step 5: Solve for x
    x = 1,743,626,742.32/69,351.71
  6. Step 6: Final answer
    x = 25,141.80

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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.