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Finding the Fourth Proportional to 203,289.22, 304,874.53 and 68,338.04

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Solution

The fourth proportional to 203,289.22, 304,874.53 and 68,338.04 is: 102,487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,289.22 : 304,874.53 = 68,338.04 : x
  2. Step 2: Convert to fraction form
    203,289.22/304,874.53 = 68,338.04/x
  3. Step 3: Cross multiply
    203,289.22x = 304,874.53 × 68,338.04
  4. Step 4: Simplify right side
    203,289.22x = 20,834,527,826.12
  5. Step 5: Solve for x
    x = 20,834,527,826.12/203,289.22
  6. Step 6: Final answer
    x = 102,487.13

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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.