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Finding the Fourth Proportional to 178,369.16, 267,340.50 and 135,919.49

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Solution

The fourth proportional to 178,369.16, 267,340.50 and 135,919.49 is: 203,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,369.16 : 267,340.50 = 135,919.49 : x
  2. Step 2: Convert to fraction form
    178,369.16/267,340.50 = 135,919.49/x
  3. Step 3: Cross multiply
    178,369.16x = 267,340.50 × 135,919.49
  4. Step 4: Simplify right side
    178,369.16x = 36,336,784,416.35
  5. Step 5: Solve for x
    x = 36,336,784,416.35/178,369.16
  6. Step 6: Final answer
    x = 203,716.74

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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.