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Finding the Fourth Proportional to 342,481.32, 513,503.28 and 164,634.48

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Solution

The fourth proportional to 342,481.32, 513,503.28 and 164,634.48 is: 246,846.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,481.32 : 513,503.28 = 164,634.48 : x
  2. Step 2: Convert to fraction form
    342,481.32/513,503.28 = 164,634.48/x
  3. Step 3: Cross multiply
    342,481.32x = 513,503.28 × 164,634.48
  4. Step 4: Simplify right side
    342,481.32x = 84,540,345,481.09
  5. Step 5: Solve for x
    x = 84,540,345,481.09/342,481.32
  6. Step 6: Final answer
    x = 246,846.59

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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.