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Finding the Fourth Proportional to 234,979.56, 352,570.80 and 85,241.08

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Solution

The fourth proportional to 234,979.56, 352,570.80 and 85,241.08 is: 127,898.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,979.56 : 352,570.80 = 85,241.08 : x
  2. Step 2: Convert to fraction form
    234,979.56/352,570.80 = 85,241.08/x
  3. Step 3: Cross multiply
    234,979.56x = 352,570.80 × 85,241.08
  4. Step 4: Simplify right side
    234,979.56x = 30,053,515,768.46
  5. Step 5: Solve for x
    x = 30,053,515,768.46/234,979.56
  6. Step 6: Final answer
    x = 127,898.43

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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.