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Finding the Fourth Proportional to 162,679.10, 243,982.20 and 106,910.60

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Solution

The fourth proportional to 162,679.10, 243,982.20 and 106,910.60 is: 160,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,679.10 : 243,982.20 = 106,910.60 : x
  2. Step 2: Convert to fraction form
    162,679.10/243,982.20 = 106,910.60/x
  3. Step 3: Cross multiply
    162,679.10x = 243,982.20 × 106,910.60
  4. Step 4: Simplify right side
    162,679.10x = 26,084,283,391.32
  5. Step 5: Solve for x
    x = 26,084,283,391.32/162,679.10
  6. Step 6: Final answer
    x = 160,341.95

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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.