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Finding the Fourth Proportional to 74,910.64, 103,371.48 and 41,374

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Solution

The fourth proportional to 74,910.64, 103,371.48 and 41,374 is: 57,093.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,910.64 : 103,371.48 = 41,374 : x
  2. Step 2: Convert to fraction form
    74,910.64/103,371.48 = 41,374/x
  3. Step 3: Cross multiply
    74,910.64x = 103,371.48 × 41,374
  4. Step 4: Simplify right side
    74,910.64x = 4,276,891,613.52
  5. Step 5: Solve for x
    x = 4,276,891,613.52/74,910.64
  6. Step 6: Final answer
    x = 57,093.25

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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.