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Finding the Fourth Proportional to 165,768.70, 248,626.65 and 54,960.70

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Solution

The fourth proportional to 165,768.70, 248,626.65 and 54,960.70 is: 82,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,768.70 : 248,626.65 = 54,960.70 : x
  2. Step 2: Convert to fraction form
    165,768.70/248,626.65 = 54,960.70/x
  3. Step 3: Cross multiply
    165,768.70x = 248,626.65 × 54,960.70
  4. Step 4: Simplify right side
    165,768.70x = 13,664,694,722.66
  5. Step 5: Solve for x
    x = 13,664,694,722.66/165,768.70
  6. Step 6: Final answer
    x = 82,432.30

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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.