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Finding the Fourth Proportional to 74,905.46, 103,370.07 and 41,371.46

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Solution

The fourth proportional to 74,905.46, 103,370.07 and 41,371.46 is: 57,092.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,905.46 : 103,370.07 = 41,371.46 : x
  2. Step 2: Convert to fraction form
    74,905.46/103,370.07 = 41,371.46/x
  3. Step 3: Cross multiply
    74,905.46x = 103,370.07 × 41,371.46
  4. Step 4: Simplify right side
    74,905.46x = 4,276,570,716.20
  5. Step 5: Solve for x
    x = 4,276,570,716.20/74,905.46
  6. Step 6: Final answer
    x = 57,092.91

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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.