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Finding the Fourth Proportional to 104,129.51, 156,200.31 and 29,255.49

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Solution

The fourth proportional to 104,129.51, 156,200.31 and 29,255.49 is: 43,884.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,129.51 : 156,200.31 = 29,255.49 : x
  2. Step 2: Convert to fraction form
    104,129.51/156,200.31 = 29,255.49/x
  3. Step 3: Cross multiply
    104,129.51x = 156,200.31 × 29,255.49
  4. Step 4: Simplify right side
    104,129.51x = 4,569,715,826.20
  5. Step 5: Solve for x
    x = 4,569,715,826.20/104,129.51
  6. Step 6: Final answer
    x = 43,884.93

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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.