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Finding the Fourth Proportional to 505,694.27, 758,287.47 and 168,615.61

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Solution

The fourth proportional to 505,694.27, 758,287.47 and 168,615.61 is: 252,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,694.27 : 758,287.47 = 168,615.61 : x
  2. Step 2: Convert to fraction form
    505,694.27/758,287.47 = 168,615.61/x
  3. Step 3: Cross multiply
    505,694.27x = 758,287.47 × 168,615.61
  4. Step 4: Simplify right side
    505,694.27x = 127,859,100,517.97
  5. Step 5: Solve for x
    x = 127,859,100,517.97/505,694.27
  6. Step 6: Final answer
    x = 252,838.74

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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.