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Finding the Fourth Proportional to 168,291.52, 252,266.94 and 109,164.76

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Solution

The fourth proportional to 168,291.52, 252,266.94 and 109,164.76 is: 163,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,291.52 : 252,266.94 = 109,164.76 : x
  2. Step 2: Convert to fraction form
    168,291.52/252,266.94 = 109,164.76/x
  3. Step 3: Cross multiply
    168,291.52x = 252,266.94 × 109,164.76
  4. Step 4: Simplify right side
    168,291.52x = 27,538,659,961.03
  5. Step 5: Solve for x
    x = 27,538,659,961.03/168,291.52
  6. Step 6: Final answer
    x = 163,636.65

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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.