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Finding the Fourth Proportional to 74,770.87, 103,180.94 and 41,236.87

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Solution

The fourth proportional to 74,770.87, 103,180.94 and 41,236.87 is: 56,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,770.87 : 103,180.94 = 41,236.87 : x
  2. Step 2: Convert to fraction form
    74,770.87/103,180.94 = 41,236.87/x
  3. Step 3: Cross multiply
    74,770.87x = 103,180.94 × 41,236.87
  4. Step 4: Simplify right side
    74,770.87x = 4,254,858,596.45
  5. Step 5: Solve for x
    x = 4,254,858,596.45/74,770.87
  6. Step 6: Final answer
    x = 56,905.30

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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.