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Finding the Fourth Proportional to 108,520.38, 162,768.06 and 29,640.96

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Solution

The fourth proportional to 108,520.38, 162,768.06 and 29,640.96 is: 44,458.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,520.38 : 162,768.06 = 29,640.96 : x
  2. Step 2: Convert to fraction form
    108,520.38/162,768.06 = 29,640.96/x
  3. Step 3: Cross multiply
    108,520.38x = 162,768.06 × 29,640.96
  4. Step 4: Simplify right side
    108,520.38x = 4,824,601,555.74
  5. Step 5: Solve for x
    x = 4,824,601,555.74/108,520.38
  6. Step 6: Final answer
    x = 44,458.02

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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.