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Finding the Fourth Proportional to 178,472.88, 267,623.20 and 103,611.87

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Solution

The fourth proportional to 178,472.88, 267,623.20 and 103,611.87 is: 155,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,472.88 : 267,623.20 = 103,611.87 : x
  2. Step 2: Convert to fraction form
    178,472.88/267,623.20 = 103,611.87/x
  3. Step 3: Cross multiply
    178,472.88x = 267,623.20 × 103,611.87
  4. Step 4: Simplify right side
    178,472.88x = 27,728,939,689.32
  5. Step 5: Solve for x
    x = 27,728,939,689.32/178,472.88
  6. Step 6: Final answer
    x = 155,367.81

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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.