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Finding the Fourth Proportional to 247,604.72, 341,715.66 and 140,193.68

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Solution

The fourth proportional to 247,604.72, 341,715.66 and 140,193.68 is: 193,479.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,604.72 : 341,715.66 = 140,193.68 : x
  2. Step 2: Convert to fraction form
    247,604.72/341,715.66 = 140,193.68/x
  3. Step 3: Cross multiply
    247,604.72x = 341,715.66 × 140,193.68
  4. Step 4: Simplify right side
    247,604.72x = 47,906,375,889.03
  5. Step 5: Solve for x
    x = 47,906,375,889.03/247,604.72
  6. Step 6: Final answer
    x = 193,479.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.