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Finding the Fourth Proportional to 168,498.90, 252,678.06 and 68,591.27

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Solution

The fourth proportional to 168,498.90, 252,678.06 and 68,591.27 is: 102,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,498.90 : 252,678.06 = 68,591.27 : x
  2. Step 2: Convert to fraction form
    168,498.90/252,678.06 = 68,591.27/x
  3. Step 3: Cross multiply
    168,498.90x = 252,678.06 × 68,591.27
  4. Step 4: Simplify right side
    168,498.90x = 17,331,509,668.23
  5. Step 5: Solve for x
    x = 17,331,509,668.23/168,498.90
  6. Step 6: Final answer
    x = 102,858.30

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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.