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Finding the Fourth Proportional to 159,349.84, 239,033.40 and 80,371.60

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Solution

The fourth proportional to 159,349.84, 239,033.40 and 80,371.60 is: 120,561.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,349.84 : 239,033.40 = 80,371.60 : x
  2. Step 2: Convert to fraction form
    159,349.84/239,033.40 = 80,371.60/x
  3. Step 3: Cross multiply
    159,349.84x = 239,033.40 × 80,371.60
  4. Step 4: Simplify right side
    159,349.84x = 19,211,496,811.44
  5. Step 5: Solve for x
    x = 19,211,496,811.44/159,349.84
  6. Step 6: Final answer
    x = 120,561.76

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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.