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Finding the Fourth Proportional to 169,252.48, 253,872.55 and 68,081.86

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Solution

The fourth proportional to 169,252.48, 253,872.55 and 68,081.86 is: 102,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,252.48 : 253,872.55 = 68,081.86 : x
  2. Step 2: Convert to fraction form
    169,252.48/253,872.55 = 68,081.86/x
  3. Step 3: Cross multiply
    169,252.48x = 253,872.55 × 68,081.86
  4. Step 4: Simplify right side
    169,252.48x = 17,284,115,406.94
  5. Step 5: Solve for x
    x = 17,284,115,406.94/169,252.48
  6. Step 6: Final answer
    x = 102,120.31

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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.