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Finding the Fourth Proportional to 259,461.92, 389,071.92 and 134,769.44

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Solution

The fourth proportional to 259,461.92, 389,071.92 and 134,769.44 is: 202,091.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,461.92 : 389,071.92 = 134,769.44 : x
  2. Step 2: Convert to fraction form
    259,461.92/389,071.92 = 134,769.44/x
  3. Step 3: Cross multiply
    259,461.92x = 389,071.92 × 134,769.44
  4. Step 4: Simplify right side
    259,461.92x = 52,435,004,778.12
  5. Step 5: Solve for x
    x = 52,435,004,778.12/259,461.92
  6. Step 6: Final answer
    x = 202,091.33

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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.