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Finding the Fourth Proportional to 272,644.60, 408,092.10 and 193,912.60

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Solution

The fourth proportional to 272,644.60, 408,092.10 and 193,912.60 is: 290,246.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,644.60 : 408,092.10 = 193,912.60 : x
  2. Step 2: Convert to fraction form
    272,644.60/408,092.10 = 193,912.60/x
  3. Step 3: Cross multiply
    272,644.60x = 408,092.10 × 193,912.60
  4. Step 4: Simplify right side
    272,644.60x = 79,134,200,150.46
  5. Step 5: Solve for x
    x = 79,134,200,150.46/272,644.60
  6. Step 6: Final answer
    x = 290,246.72

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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.