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Finding the Fourth Proportional to 193,371.20, 289,711.20 and 165,723.20

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Solution

The fourth proportional to 193,371.20, 289,711.20 and 165,723.20 is: 248,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,371.20 : 289,711.20 = 165,723.20 : x
  2. Step 2: Convert to fraction form
    193,371.20/289,711.20 = 165,723.20/x
  3. Step 3: Cross multiply
    193,371.20x = 289,711.20 × 165,723.20
  4. Step 4: Simplify right side
    193,371.20x = 48,011,867,139.84
  5. Step 5: Solve for x
    x = 48,011,867,139.84/193,371.20
  6. Step 6: Final answer
    x = 248,288.61

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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.