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Finding the Fourth Proportional to 158,661.20, 237,845.96 and 68,647.68

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Solution

The fourth proportional to 158,661.20, 237,845.96 and 68,647.68 is: 102,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,661.20 : 237,845.96 = 68,647.68 : x
  2. Step 2: Convert to fraction form
    158,661.20/237,845.96 = 68,647.68/x
  3. Step 3: Cross multiply
    158,661.20x = 237,845.96 × 68,647.68
  4. Step 4: Simplify right side
    158,661.20x = 16,327,573,351.37
  5. Step 5: Solve for x
    x = 16,327,573,351.37/158,661.20
  6. Step 6: Final answer
    x = 102,908.42

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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.