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Finding the Fourth Proportional to 100,073.36, 150,227.28 and 79,027.52

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Solution

The fourth proportional to 100,073.36, 150,227.28 and 79,027.52 is: 118,633.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,073.36 : 150,227.28 = 79,027.52 : x
  2. Step 2: Convert to fraction form
    100,073.36/150,227.28 = 79,027.52/x
  3. Step 3: Cross multiply
    100,073.36x = 150,227.28 × 79,027.52
  4. Step 4: Simplify right side
    100,073.36x = 11,872,089,374.75
  5. Step 5: Solve for x
    x = 11,872,089,374.75/100,073.36
  6. Step 6: Final answer
    x = 118,633.86

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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.