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Finding the Fourth Proportional to 110,810.80, 166,183.80 and 39,725.20

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Solution

The fourth proportional to 110,810.80, 166,183.80 and 39,725.20 is: 59,576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,810.80 : 166,183.80 = 39,725.20 : x
  2. Step 2: Convert to fraction form
    110,810.80/166,183.80 = 39,725.20/x
  3. Step 3: Cross multiply
    110,810.80x = 166,183.80 × 39,725.20
  4. Step 4: Simplify right side
    110,810.80x = 6,601,684,691.76
  5. Step 5: Solve for x
    x = 6,601,684,691.76/110,810.80
  6. Step 6: Final answer
    x = 59,576.18

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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.