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Finding the Fourth Proportional to 253,930.19, 380,945.04 and 94,007.43

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Solution

The fourth proportional to 253,930.19, 380,945.04 and 94,007.43 is: 141,029.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,930.19 : 380,945.04 = 94,007.43 : x
  2. Step 2: Convert to fraction form
    253,930.19/380,945.04 = 94,007.43/x
  3. Step 3: Cross multiply
    253,930.19x = 380,945.04 × 94,007.43
  4. Step 4: Simplify right side
    253,930.19x = 35,811,664,181.65
  5. Step 5: Solve for x
    x = 35,811,664,181.65/253,930.19
  6. Step 6: Final answer
    x = 141,029.56

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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.