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Finding the Fourth Proportional to 164,711.40, 247,067.10 and 162,961.80

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Solution

The fourth proportional to 164,711.40, 247,067.10 and 162,961.80 is: 244,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,711.40 : 247,067.10 = 162,961.80 : x
  2. Step 2: Convert to fraction form
    164,711.40/247,067.10 = 162,961.80/x
  3. Step 3: Cross multiply
    164,711.40x = 247,067.10 × 162,961.80
  4. Step 4: Simplify right side
    164,711.40x = 40,262,499,336.78
  5. Step 5: Solve for x
    x = 40,262,499,336.78/164,711.40
  6. Step 6: Final answer
    x = 244,442.70

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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.