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Finding the Fourth Proportional to 159,552.40, 239,213.40 and 89,453.20

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Solution

The fourth proportional to 159,552.40, 239,213.40 and 89,453.20 is: 134,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,552.40 : 239,213.40 = 89,453.20 : x
  2. Step 2: Convert to fraction form
    159,552.40/239,213.40 = 89,453.20/x
  3. Step 3: Cross multiply
    159,552.40x = 239,213.40 × 89,453.20
  4. Step 4: Simplify right side
    159,552.40x = 21,398,404,112.88
  5. Step 5: Solve for x
    x = 21,398,404,112.88/159,552.40
  6. Step 6: Final answer
    x = 134,115.21

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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.