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Finding the Fourth Proportional to 223,836.90, 335,791.80 and 66,081.30

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Solution

The fourth proportional to 223,836.90, 335,791.80 and 66,081.30 is: 99,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,836.90 : 335,791.80 = 66,081.30 : x
  2. Step 2: Convert to fraction form
    223,836.90/335,791.80 = 66,081.30/x
  3. Step 3: Cross multiply
    223,836.90x = 335,791.80 × 66,081.30
  4. Step 4: Simplify right side
    223,836.90x = 22,189,558,673.34
  5. Step 5: Solve for x
    x = 22,189,558,673.34/223,836.90
  6. Step 6: Final answer
    x = 99,132.71

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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.