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Finding the Fourth Proportional to 69,858.96, 104,626.44 and 40,203.24

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Solution

The fourth proportional to 69,858.96, 104,626.44 and 40,203.24 is: 60,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,858.96 : 104,626.44 = 40,203.24 : x
  2. Step 2: Convert to fraction form
    69,858.96/104,626.44 = 40,203.24/x
  3. Step 3: Cross multiply
    69,858.96x = 104,626.44 × 40,203.24
  4. Step 4: Simplify right side
    69,858.96x = 4,206,321,877.67
  5. Step 5: Solve for x
    x = 4,206,321,877.67/69,858.96
  6. Step 6: Final answer
    x = 60,211.63

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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.