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Finding the Fourth Proportional to 162,911.70, 244,355.40 and 68,117.40

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Solution

The fourth proportional to 162,911.70, 244,355.40 and 68,117.40 is: 102,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,911.70 : 244,355.40 = 68,117.40 : x
  2. Step 2: Convert to fraction form
    162,911.70/244,355.40 = 68,117.40/x
  3. Step 3: Cross multiply
    162,911.70x = 244,355.40 × 68,117.40
  4. Step 4: Simplify right side
    162,911.70x = 16,644,854,523.96
  5. Step 5: Solve for x
    x = 16,644,854,523.96/162,911.70
  6. Step 6: Final answer
    x = 102,171.02

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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.