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Finding the Fourth Proportional to 100,456.51, 150,578.55 and 36,371.92

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Solution

The fourth proportional to 100,456.51, 150,578.55 and 36,371.92 is: 54,519.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,456.51 : 150,578.55 = 36,371.92 : x
  2. Step 2: Convert to fraction form
    100,456.51/150,578.55 = 36,371.92/x
  3. Step 3: Cross multiply
    100,456.51x = 150,578.55 × 36,371.92
  4. Step 4: Simplify right side
    100,456.51x = 5,476,830,974.32
  5. Step 5: Solve for x
    x = 5,476,830,974.32/100,456.51
  6. Step 6: Final answer
    x = 54,519.42

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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.