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Finding the Fourth Proportional to 179,689.55, 269,455.38 and 67,290.94

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Solution

The fourth proportional to 179,689.55, 269,455.38 and 67,290.94 is: 100,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,689.55 : 269,455.38 = 67,290.94 : x
  2. Step 2: Convert to fraction form
    179,689.55/269,455.38 = 67,290.94/x
  3. Step 3: Cross multiply
    179,689.55x = 269,455.38 × 67,290.94
  4. Step 4: Simplify right side
    179,689.55x = 18,131,904,460.98
  5. Step 5: Solve for x
    x = 18,131,904,460.98/179,689.55
  6. Step 6: Final answer
    x = 100,906.84

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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.