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Finding the Fourth Proportional to 358,198.39, 493,974.49 and 229,177.69

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Solution

The fourth proportional to 358,198.39, 493,974.49 and 229,177.69 is: 316,048.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,198.39 : 493,974.49 = 229,177.69 : x
  2. Step 2: Convert to fraction form
    358,198.39/493,974.49 = 229,177.69/x
  3. Step 3: Cross multiply
    358,198.39x = 493,974.49 × 229,177.69
  4. Step 4: Simplify right side
    358,198.39x = 113,207,932,537.13
  5. Step 5: Solve for x
    x = 113,207,932,537.13/358,198.39
  6. Step 6: Final answer
    x = 316,048.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.