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Finding the Fourth Proportional to 178,806.89, 267,826.39 and 168,338.45

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Solution

The fourth proportional to 178,806.89, 267,826.39 and 168,338.45 is: 252,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,806.89 : 267,826.39 = 168,338.45 : x
  2. Step 2: Convert to fraction form
    178,806.89/267,826.39 = 168,338.45/x
  3. Step 3: Cross multiply
    178,806.89x = 267,826.39 × 168,338.45
  4. Step 4: Simplify right side
    178,806.89x = 45,085,477,601.72
  5. Step 5: Solve for x
    x = 45,085,477,601.72/178,806.89
  6. Step 6: Final answer
    x = 252,146.21

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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.