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Finding the Fourth Proportional to 168,668.36, 253,044.05 and 118,845.76

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Solution

The fourth proportional to 168,668.36, 253,044.05 and 118,845.76 is: 178,297.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,668.36 : 253,044.05 = 118,845.76 : x
  2. Step 2: Convert to fraction form
    168,668.36/253,044.05 = 118,845.76/x
  3. Step 3: Cross multiply
    168,668.36x = 253,044.05 × 118,845.76
  4. Step 4: Simplify right side
    168,668.36x = 30,073,212,435.73
  5. Step 5: Solve for x
    x = 30,073,212,435.73/168,668.36
  6. Step 6: Final answer
    x = 178,297.89

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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.