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Finding the Fourth Proportional to 178,647.33, 267,620.66 and 103,609.87

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Solution

The fourth proportional to 178,647.33, 267,620.66 and 103,609.87 is: 155,211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,647.33 : 267,620.66 = 103,609.87 : x
  2. Step 2: Convert to fraction form
    178,647.33/267,620.66 = 103,609.87/x
  3. Step 3: Cross multiply
    178,647.33x = 267,620.66 × 103,609.87
  4. Step 4: Simplify right side
    178,647.33x = 27,728,141,273.86
  5. Step 5: Solve for x
    x = 27,728,141,273.86/178,647.33
  6. Step 6: Final answer
    x = 155,211.62

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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.