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Finding the Fourth Proportional to 104,517.26, 156,742.45 and 34,379.98

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Solution

The fourth proportional to 104,517.26, 156,742.45 and 34,379.98 is: 51,558.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,517.26 : 156,742.45 = 34,379.98 : x
  2. Step 2: Convert to fraction form
    104,517.26/156,742.45 = 34,379.98/x
  3. Step 3: Cross multiply
    104,517.26x = 156,742.45 × 34,379.98
  4. Step 4: Simplify right side
    104,517.26x = 5,388,802,296.15
  5. Step 5: Solve for x
    x = 5,388,802,296.15/104,517.26
  6. Step 6: Final answer
    x = 51,558.97

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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.