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Finding the Fourth Proportional to 168,535.71, 252,838.17 and 68,696.31

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Solution

The fourth proportional to 168,535.71, 252,838.17 and 68,696.31 is: 103,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,535.71 : 252,838.17 = 68,696.31 : x
  2. Step 2: Convert to fraction form
    168,535.71/252,838.17 = 68,696.31/x
  3. Step 3: Cross multiply
    168,535.71x = 252,838.17 × 68,696.31
  4. Step 4: Simplify right side
    168,535.71x = 17,369,049,306.15
  5. Step 5: Solve for x
    x = 17,369,049,306.15/168,535.71
  6. Step 6: Final answer
    x = 103,058.57

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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.