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Finding the Fourth Proportional to 72,880.44, 100,575.36 and 41,049.96

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Solution

The fourth proportional to 72,880.44, 100,575.36 and 41,049.96 is: 56,649.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,880.44 : 100,575.36 = 41,049.96 : x
  2. Step 2: Convert to fraction form
    72,880.44/100,575.36 = 41,049.96/x
  3. Step 3: Cross multiply
    72,880.44x = 100,575.36 × 41,049.96
  4. Step 4: Simplify right side
    72,880.44x = 4,128,614,504.99
  5. Step 5: Solve for x
    x = 4,128,614,504.99/72,880.44
  6. Step 6: Final answer
    x = 56,649.14

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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.