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Finding the Fourth Proportional to 178,336.80, 267,067.80 and 118,850.40

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Solution

The fourth proportional to 178,336.80, 267,067.80 and 118,850.40 is: 177,984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,336.80 : 267,067.80 = 118,850.40 : x
  2. Step 2: Convert to fraction form
    178,336.80/267,067.80 = 118,850.40/x
  3. Step 3: Cross multiply
    178,336.80x = 267,067.80 × 118,850.40
  4. Step 4: Simplify right side
    178,336.80x = 31,741,114,857.12
  5. Step 5: Solve for x
    x = 31,741,114,857.12/178,336.80
  6. Step 6: Final answer
    x = 177,984.10

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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.