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Finding the Fourth Proportional to 104,150.31, 156,100.26 and 47,912.92

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Solution

The fourth proportional to 104,150.31, 156,100.26 and 47,912.92 is: 71,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,150.31 : 156,100.26 = 47,912.92 : x
  2. Step 2: Convert to fraction form
    104,150.31/156,100.26 = 47,912.92/x
  3. Step 3: Cross multiply
    104,150.31x = 156,100.26 × 47,912.92
  4. Step 4: Simplify right side
    104,150.31x = 7,479,219,058.78
  5. Step 5: Solve for x
    x = 7,479,219,058.78/104,150.31
  6. Step 6: Final answer
    x = 71,811.78

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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.