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Finding the Fourth Proportional to 166,726.78, 250,014.52 and 71,912.16

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Solution

The fourth proportional to 166,726.78, 250,014.52 and 71,912.16 is: 107,835.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,726.78 : 250,014.52 = 71,912.16 : x
  2. Step 2: Convert to fraction form
    166,726.78/250,014.52 = 71,912.16/x
  3. Step 3: Cross multiply
    166,726.78x = 250,014.52 × 71,912.16
  4. Step 4: Simplify right side
    166,726.78x = 17,979,084,164.56
  5. Step 5: Solve for x
    x = 17,979,084,164.56/166,726.78
  6. Step 6: Final answer
    x = 107,835.61

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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.