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Finding the Fourth Proportional to 234,054.05, 351,091.10 and 91,930.12

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Solution

The fourth proportional to 234,054.05, 351,091.10 and 91,930.12 is: 137,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,054.05 : 351,091.10 = 91,930.12 : x
  2. Step 2: Convert to fraction form
    234,054.05/351,091.10 = 91,930.12/x
  3. Step 3: Cross multiply
    234,054.05x = 351,091.10 × 91,930.12
  4. Step 4: Simplify right side
    234,054.05x = 32,275,846,306.03
  5. Step 5: Solve for x
    x = 32,275,846,306.03/234,054.05
  6. Step 6: Final answer
    x = 137,899.12

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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.