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Finding the Fourth Proportional to 165,876.96, 248,668.20 and 64,651.56

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Solution

The fourth proportional to 165,876.96, 248,668.20 and 64,651.56 is: 96,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,876.96 : 248,668.20 = 64,651.56 : x
  2. Step 2: Convert to fraction form
    165,876.96/248,668.20 = 64,651.56/x
  3. Step 3: Cross multiply
    165,876.96x = 248,668.20 × 64,651.56
  4. Step 4: Simplify right side
    165,876.96x = 16,076,787,052.39
  5. Step 5: Solve for x
    x = 16,076,787,052.39/165,876.96
  6. Step 6: Final answer
    x = 96,919.95

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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.