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Finding the Fourth Proportional to 188,463.33, 260,076.37 and 103,578.57

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Solution

The fourth proportional to 188,463.33, 260,076.37 and 103,578.57 is: 142,936.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,463.33 : 260,076.37 = 103,578.57 : x
  2. Step 2: Convert to fraction form
    188,463.33/260,076.37 = 103,578.57/x
  3. Step 3: Cross multiply
    188,463.33x = 260,076.37 × 103,578.57
  4. Step 4: Simplify right side
    188,463.33x = 26,938,337,195.01
  5. Step 5: Solve for x
    x = 26,938,337,195.01/188,463.33
  6. Step 6: Final answer
    x = 142,936.76

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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.