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Finding the Fourth Proportional to 259,460.92, 389,070.42 and 134,768.44

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Solution

The fourth proportional to 259,460.92, 389,070.42 and 134,768.44 is: 202,089.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,460.92 : 389,070.42 = 134,768.44 : x
  2. Step 2: Convert to fraction form
    259,460.92/389,070.42 = 134,768.44/x
  3. Step 3: Cross multiply
    259,460.92x = 389,070.42 × 134,768.44
  4. Step 4: Simplify right side
    259,460.92x = 52,434,413,553.54
  5. Step 5: Solve for x
    x = 52,434,413,553.54/259,460.92
  6. Step 6: Final answer
    x = 202,089.83

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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.