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Finding the Fourth Proportional to 162,878.72, 244,147.55 and 68,163.17

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Solution

The fourth proportional to 162,878.72, 244,147.55 and 68,163.17 is: 102,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,878.72 : 244,147.55 = 68,163.17 : x
  2. Step 2: Convert to fraction form
    162,878.72/244,147.55 = 68,163.17/x
  3. Step 3: Cross multiply
    162,878.72x = 244,147.55 × 68,163.17
  4. Step 4: Simplify right side
    162,878.72x = 16,641,869,905.40
  5. Step 5: Solve for x
    x = 16,641,869,905.40/162,878.72
  6. Step 6: Final answer
    x = 102,173.39

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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.