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Finding the Fourth Proportional to 104,067.87, 143,578.62 and 67,752.74

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Solution

The fourth proportional to 104,067.87, 143,578.62 and 67,752.74 is: 93,475.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,067.87 : 143,578.62 = 67,752.74 : x
  2. Step 2: Convert to fraction form
    104,067.87/143,578.62 = 67,752.74/x
  3. Step 3: Cross multiply
    104,067.87x = 143,578.62 × 67,752.74
  4. Step 4: Simplify right side
    104,067.87x = 9,727,844,192.53
  5. Step 5: Solve for x
    x = 9,727,844,192.53/104,067.87
  6. Step 6: Final answer
    x = 93,475.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.