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Finding the Fourth Proportional to 72,874.28, 100,564.44 and 41,043.44

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Solution

The fourth proportional to 72,874.28, 100,564.44 and 41,043.44 is: 56,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,874.28 : 100,564.44 = 41,043.44 : x
  2. Step 2: Convert to fraction form
    72,874.28/100,564.44 = 41,043.44/x
  3. Step 3: Cross multiply
    72,874.28x = 100,564.44 × 41,043.44
  4. Step 4: Simplify right side
    72,874.28x = 4,127,510,559.27
  5. Step 5: Solve for x
    x = 4,127,510,559.27/72,874.28
  6. Step 6: Final answer
    x = 56,638.78

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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.