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Finding the Fourth Proportional to 132,843.68, 183,323.04 and 72,414.24

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Solution

The fourth proportional to 132,843.68, 183,323.04 and 72,414.24 is: 99,930.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,843.68 : 183,323.04 = 72,414.24 : x
  2. Step 2: Convert to fraction form
    132,843.68/183,323.04 = 72,414.24/x
  3. Step 3: Cross multiply
    132,843.68x = 183,323.04 × 72,414.24
  4. Step 4: Simplify right side
    132,843.68x = 13,275,198,616.09
  5. Step 5: Solve for x
    x = 13,275,198,616.09/132,843.68
  6. Step 6: Final answer
    x = 99,930.98

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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.