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Finding the Fourth Proportional to 135,923.40, 203,481.90 and 101,017.80

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Solution

The fourth proportional to 135,923.40, 203,481.90 and 101,017.80 is: 151,227.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,923.40 : 203,481.90 = 101,017.80 : x
  2. Step 2: Convert to fraction form
    135,923.40/203,481.90 = 101,017.80/x
  3. Step 3: Cross multiply
    135,923.40x = 203,481.90 × 101,017.80
  4. Step 4: Simplify right side
    135,923.40x = 20,555,293,877.82
  5. Step 5: Solve for x
    x = 20,555,293,877.82/135,923.40
  6. Step 6: Final answer
    x = 151,227.04

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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.