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Finding the Fourth Proportional to 135,851.80, 203,786.70 and 36,010.60

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Solution

The fourth proportional to 135,851.80, 203,786.70 and 36,010.60 is: 54,018.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,851.80 : 203,786.70 = 36,010.60 : x
  2. Step 2: Convert to fraction form
    135,851.80/203,786.70 = 36,010.60/x
  3. Step 3: Cross multiply
    135,851.80x = 203,786.70 × 36,010.60
  4. Step 4: Simplify right side
    135,851.80x = 7,338,481,339.02
  5. Step 5: Solve for x
    x = 7,338,481,339.02/135,851.80
  6. Step 6: Final answer
    x = 54,018.29

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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.