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Finding the Fourth Proportional to 74,917.54, 103,385.89 and 41,383.54

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Solution

The fourth proportional to 74,917.54, 103,385.89 and 41,383.54 is: 57,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,917.54 : 103,385.89 = 41,383.54 : x
  2. Step 2: Convert to fraction form
    74,917.54/103,385.89 = 41,383.54/x
  3. Step 3: Cross multiply
    74,917.54x = 103,385.89 × 41,383.54
  4. Step 4: Simplify right side
    74,917.54x = 4,278,474,114.25
  5. Step 5: Solve for x
    x = 4,278,474,114.25/74,917.54
  6. Step 6: Final answer
    x = 57,109.11

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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.