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Finding the Fourth Proportional to 74,843.28, 103,283.82 and 41,309.28

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Solution

The fourth proportional to 74,843.28, 103,283.82 and 41,309.28 is: 57,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,843.28 : 103,283.82 = 41,309.28 : x
  2. Step 2: Convert to fraction form
    74,843.28/103,283.82 = 41,309.28/x
  3. Step 3: Cross multiply
    74,843.28x = 103,283.82 × 41,309.28
  4. Step 4: Simplify right side
    74,843.28x = 4,266,580,239.85
  5. Step 5: Solve for x
    x = 4,266,580,239.85/74,843.28
  6. Step 6: Final answer
    x = 57,006.86

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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.