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Finding the Fourth Proportional to 165,912.80, 248,869.20 and 41,253.80

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Solution

The fourth proportional to 165,912.80, 248,869.20 and 41,253.80 is: 61,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,912.80 : 248,869.20 = 41,253.80 : x
  2. Step 2: Convert to fraction form
    165,912.80/248,869.20 = 41,253.80/x
  3. Step 3: Cross multiply
    165,912.80x = 248,869.20 × 41,253.80
  4. Step 4: Simplify right side
    165,912.80x = 10,266,800,202.96
  5. Step 5: Solve for x
    x = 10,266,800,202.96/165,912.80
  6. Step 6: Final answer
    x = 61,880.70

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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.