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Finding the Fourth Proportional to 178,472.60, 267,622.78 and 103,611.59

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Solution

The fourth proportional to 178,472.60, 267,622.78 and 103,611.59 is: 155,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,472.60 : 267,622.78 = 103,611.59 : x
  2. Step 2: Convert to fraction form
    178,472.60/267,622.78 = 103,611.59/x
  3. Step 3: Cross multiply
    178,472.60x = 267,622.78 × 103,611.59
  4. Step 4: Simplify right side
    178,472.60x = 27,728,820,158.88
  5. Step 5: Solve for x
    x = 27,728,820,158.88/178,472.60
  6. Step 6: Final answer
    x = 155,367.38

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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.