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Finding the Fourth Proportional to 178,067.44, 266,916.66 and 111,354.40

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Solution

The fourth proportional to 178,067.44, 266,916.66 and 111,354.40 is: 166,916.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,067.44 : 266,916.66 = 111,354.40 : x
  2. Step 2: Convert to fraction form
    178,067.44/266,916.66 = 111,354.40/x
  3. Step 3: Cross multiply
    178,067.44x = 266,916.66 × 111,354.40
  4. Step 4: Simplify right side
    178,067.44x = 29,722,344,524.30
  5. Step 5: Solve for x
    x = 29,722,344,524.30/178,067.44
  6. Step 6: Final answer
    x = 166,916.22

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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.