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Finding the Fourth Proportional to 358,189.72, 494,177.63 and 222,174.72

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Solution

The fourth proportional to 358,189.72, 494,177.63 and 222,174.72 is: 306,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,189.72 : 494,177.63 = 222,174.72 : x
  2. Step 2: Convert to fraction form
    358,189.72/494,177.63 = 222,174.72/x
  3. Step 3: Cross multiply
    358,189.72x = 494,177.63 × 222,174.72
  4. Step 4: Simplify right side
    358,189.72x = 109,793,775,464.64
  5. Step 5: Solve for x
    x = 109,793,775,464.64/358,189.72
  6. Step 6: Final answer
    x = 306,524.09

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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.