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Finding the Fourth Proportional to 74,863.44, 103,308.84 and 41,328.72

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Solution

The fourth proportional to 74,863.44, 103,308.84 and 41,328.72 is: 57,032.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,863.44 : 103,308.84 = 41,328.72 : x
  2. Step 2: Convert to fraction form
    74,863.44/103,308.84 = 41,328.72/x
  3. Step 3: Cross multiply
    74,863.44x = 103,308.84 × 41,328.72
  4. Step 4: Simplify right side
    74,863.44x = 4,269,622,121.88
  5. Step 5: Solve for x
    x = 4,269,622,121.88/74,863.44
  6. Step 6: Final answer
    x = 57,032.14

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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.