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Finding the Fourth Proportional to 242,715.70, 363,964.20 and 92,906.20

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Solution

The fourth proportional to 242,715.70, 363,964.20 and 92,906.20 is: 139,317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,715.70 : 363,964.20 = 92,906.20 : x
  2. Step 2: Convert to fraction form
    242,715.70/363,964.20 = 92,906.20/x
  3. Step 3: Cross multiply
    242,715.70x = 363,964.20 × 92,906.20
  4. Step 4: Simplify right side
    242,715.70x = 33,814,530,758.04
  5. Step 5: Solve for x
    x = 33,814,530,758.04/242,715.70
  6. Step 6: Final answer
    x = 139,317.44

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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.