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Finding the Fourth Proportional to 178,468.80, 267,618.42 and 103,611.96

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Solution

The fourth proportional to 178,468.80, 267,618.42 and 103,611.96 is: 155,368.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,468.80 : 267,618.42 = 103,611.96 : x
  2. Step 2: Convert to fraction form
    178,468.80/267,618.42 = 103,611.96/x
  3. Step 3: Cross multiply
    178,468.80x = 267,618.42 × 103,611.96
  4. Step 4: Simplify right side
    178,468.80x = 27,728,469,028.30
  5. Step 5: Solve for x
    x = 27,728,469,028.30/178,468.80
  6. Step 6: Final answer
    x = 155,368.72

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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.