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Finding the Fourth Proportional to 69,912.86, 96,492.24 and 41,230.76

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Solution

The fourth proportional to 69,912.86, 96,492.24 and 41,230.76 is: 56,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,912.86 : 96,492.24 = 41,230.76 : x
  2. Step 2: Convert to fraction form
    69,912.86/96,492.24 = 41,230.76/x
  3. Step 3: Cross multiply
    69,912.86x = 96,492.24 × 41,230.76
  4. Step 4: Simplify right side
    69,912.86x = 3,978,447,906.84
  5. Step 5: Solve for x
    x = 3,978,447,906.84/69,912.86
  6. Step 6: Final answer
    x = 56,905.81

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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.