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Finding the Fourth Proportional to 159,728.45, 239,621.37 and 54,522.82

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Solution

The fourth proportional to 159,728.45, 239,621.37 and 54,522.82 is: 81,794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,728.45 : 239,621.37 = 54,522.82 : x
  2. Step 2: Convert to fraction form
    159,728.45/239,621.37 = 54,522.82/x
  3. Step 3: Cross multiply
    159,728.45x = 239,621.37 × 54,522.82
  4. Step 4: Simplify right side
    159,728.45x = 13,064,831,353.94
  5. Step 5: Solve for x
    x = 13,064,831,353.94/159,728.45
  6. Step 6: Final answer
    x = 81,794.02

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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.