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Finding the Fourth Proportional to 109,179.70, 163,767.72 and 49,174.80

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Solution

The fourth proportional to 109,179.70, 163,767.72 and 49,174.80 is: 73,761.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,179.70 : 163,767.72 = 49,174.80 : x
  2. Step 2: Convert to fraction form
    109,179.70/163,767.72 = 49,174.80/x
  3. Step 3: Cross multiply
    109,179.70x = 163,767.72 × 49,174.80
  4. Step 4: Simplify right side
    109,179.70x = 8,053,244,171.12
  5. Step 5: Solve for x
    x = 8,053,244,171.12/109,179.70
  6. Step 6: Final answer
    x = 73,761.37

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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.