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Finding the Fourth Proportional to 162,894.45, 244,171.17 and 68,178.90

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Solution

The fourth proportional to 162,894.45, 244,171.17 and 68,178.90 is: 102,196.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,894.45 : 244,171.17 = 68,178.90 : x
  2. Step 2: Convert to fraction form
    162,894.45/244,171.17 = 68,178.90/x
  3. Step 3: Cross multiply
    162,894.45x = 244,171.17 × 68,178.90
  4. Step 4: Simplify right side
    162,894.45x = 16,647,321,782.31
  5. Step 5: Solve for x
    x = 16,647,321,782.31/162,894.45
  6. Step 6: Final answer
    x = 102,196.99

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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.