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Finding the Fourth Proportional to 175,273.20, 262,391.40 and 165,020.40

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Solution

The fourth proportional to 175,273.20, 262,391.40 and 165,020.40 is: 247,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,273.20 : 262,391.40 = 165,020.40 : x
  2. Step 2: Convert to fraction form
    175,273.20/262,391.40 = 165,020.40/x
  3. Step 3: Cross multiply
    175,273.20x = 262,391.40 × 165,020.40
  4. Step 4: Simplify right side
    175,273.20x = 43,299,933,784.56
  5. Step 5: Solve for x
    x = 43,299,933,784.56/175,273.20
  6. Step 6: Final answer
    x = 247,042.52

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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.