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Finding the Fourth Proportional to 69,296.71, 103,951.63 and 19,376.80

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Solution

The fourth proportional to 69,296.71, 103,951.63 and 19,376.80 is: 29,067.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,296.71 : 103,951.63 = 19,376.80 : x
  2. Step 2: Convert to fraction form
    69,296.71/103,951.63 = 19,376.80/x
  3. Step 3: Cross multiply
    69,296.71x = 103,951.63 × 19,376.80
  4. Step 4: Simplify right side
    69,296.71x = 2,014,250,439.84
  5. Step 5: Solve for x
    x = 2,014,250,439.84/69,296.71
  6. Step 6: Final answer
    x = 29,067.04

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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.