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Finding the Fourth Proportional to 178,472.91, 267,623.25 and 103,611.90

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Solution

The fourth proportional to 178,472.91, 267,623.25 and 103,611.90 is: 155,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,472.91 : 267,623.25 = 103,611.90 : x
  2. Step 2: Convert to fraction form
    178,472.91/267,623.25 = 103,611.90/x
  3. Step 3: Cross multiply
    178,472.91x = 267,623.25 × 103,611.90
  4. Step 4: Simplify right side
    178,472.91x = 27,728,952,898.62
  5. Step 5: Solve for x
    x = 27,728,952,898.62/178,472.91
  6. Step 6: Final answer
    x = 155,367.85

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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.