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Finding the Fourth Proportional to 159,901.21, 239,589.37 and 54,662.77

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Solution

The fourth proportional to 159,901.21, 239,589.37 and 54,662.77 is: 81,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,901.21 : 239,589.37 = 54,662.77 : x
  2. Step 2: Convert to fraction form
    159,901.21/239,589.37 = 54,662.77/x
  3. Step 3: Cross multiply
    159,901.21x = 239,589.37 × 54,662.77
  4. Step 4: Simplify right side
    159,901.21x = 13,096,618,626.75
  5. Step 5: Solve for x
    x = 13,096,618,626.75/159,901.21
  6. Step 6: Final answer
    x = 81,904.44

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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.