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Finding the Fourth Proportional to 69,693.92, 104,558.48 and 30,241.44

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Solution

The fourth proportional to 69,693.92, 104,558.48 and 30,241.44 is: 45,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,693.92 : 104,558.48 = 30,241.44 : x
  2. Step 2: Convert to fraction form
    69,693.92/104,558.48 = 30,241.44/x
  3. Step 3: Cross multiply
    69,693.92x = 104,558.48 × 30,241.44
  4. Step 4: Simplify right side
    69,693.92x = 3,161,998,999.41
  5. Step 5: Solve for x
    x = 3,161,998,999.41/69,693.92
  6. Step 6: Final answer
    x = 45,369.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.