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Finding the Fourth Proportional to 162,775.70, 244,163.55 and 120,785.30

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Solution

The fourth proportional to 162,775.70, 244,163.55 and 120,785.30 is: 181,177.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,775.70 : 244,163.55 = 120,785.30 : x
  2. Step 2: Convert to fraction form
    162,775.70/244,163.55 = 120,785.30/x
  3. Step 3: Cross multiply
    162,775.70x = 244,163.55 × 120,785.30
  4. Step 4: Simplify right side
    162,775.70x = 29,491,367,635.82
  5. Step 5: Solve for x
    x = 29,491,367,635.82/162,775.70
  6. Step 6: Final answer
    x = 181,177.95

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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.