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Finding the Fourth Proportional to 178,466.22, 267,769.43 and 78,556.38

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Solution

The fourth proportional to 178,466.22, 267,769.43 and 78,556.38 is: 117,865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,466.22 : 267,769.43 = 78,556.38 : x
  2. Step 2: Convert to fraction form
    178,466.22/267,769.43 = 78,556.38/x
  3. Step 3: Cross multiply
    178,466.22x = 267,769.43 × 78,556.38
  4. Step 4: Simplify right side
    178,466.22x = 21,034,995,993.13
  5. Step 5: Solve for x
    x = 21,034,995,993.13/178,466.22
  6. Step 6: Final answer
    x = 117,865.42

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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.