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Finding the Fourth Proportional to 104,131.50, 156,203.31 and 29,257.48

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Solution

The fourth proportional to 104,131.50, 156,203.31 and 29,257.48 is: 43,887.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,131.50 : 156,203.31 = 29,257.48 : x
  2. Step 2: Convert to fraction form
    104,131.50/156,203.31 = 29,257.48/x
  3. Step 3: Cross multiply
    104,131.50x = 156,203.31 × 29,257.48
  4. Step 4: Simplify right side
    104,131.50x = 4,570,115,218.26
  5. Step 5: Solve for x
    x = 4,570,115,218.26/104,131.50
  6. Step 6: Final answer
    x = 43,887.92

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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.