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Finding the Fourth Proportional to 303,521.92, 455,239.76 and 166,787.44

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Solution

The fourth proportional to 303,521.92, 455,239.76 and 166,787.44 is: 250,157.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,521.92 : 455,239.76 = 166,787.44 : x
  2. Step 2: Convert to fraction form
    303,521.92/455,239.76 = 166,787.44/x
  3. Step 3: Cross multiply
    303,521.92x = 455,239.76 × 166,787.44
  4. Step 4: Simplify right side
    303,521.92x = 75,928,274,156.61
  5. Step 5: Solve for x
    x = 75,928,274,156.61/303,521.92
  6. Step 6: Final answer
    x = 250,157.47

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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.