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Finding the Fourth Proportional to 188,453.97, 260,064.41 and 103,569.21

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Solution

The fourth proportional to 188,453.97, 260,064.41 and 103,569.21 is: 142,924.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,453.97 : 260,064.41 = 103,569.21 : x
  2. Step 2: Convert to fraction form
    188,453.97/260,064.41 = 103,569.21/x
  3. Step 3: Cross multiply
    188,453.97x = 260,064.41 × 103,569.21
  4. Step 4: Simplify right side
    188,453.97x = 26,934,664,974.97
  5. Step 5: Solve for x
    x = 26,934,664,974.97/188,453.97
  6. Step 6: Final answer
    x = 142,924.37

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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.