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Finding the Fourth Proportional to 361,721.52, 499,151.35 and 200,570.60

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Solution

The fourth proportional to 361,721.52, 499,151.35 and 200,570.60 is: 276,773.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,721.52 : 499,151.35 = 200,570.60 : x
  2. Step 2: Convert to fraction form
    361,721.52/499,151.35 = 200,570.60/x
  3. Step 3: Cross multiply
    361,721.52x = 499,151.35 × 200,570.60
  4. Step 4: Simplify right side
    361,721.52x = 100,115,085,760.31
  5. Step 5: Solve for x
    x = 100,115,085,760.31/361,721.52
  6. Step 6: Final answer
    x = 276,773.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.