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Finding the Fourth Proportional to 69,772.98, 104,651.69 and 19,175.88

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Solution

The fourth proportional to 69,772.98, 104,651.69 and 19,175.88 is: 28,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,772.98 : 104,651.69 = 19,175.88 : x
  2. Step 2: Convert to fraction form
    69,772.98/104,651.69 = 19,175.88/x
  3. Step 3: Cross multiply
    69,772.98x = 104,651.69 × 19,175.88
  4. Step 4: Simplify right side
    69,772.98x = 2,006,788,617.71
  5. Step 5: Solve for x
    x = 2,006,788,617.71/69,772.98
  6. Step 6: Final answer
    x = 28,761.69

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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.