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Finding the Fourth Proportional to 279,231.72, 418,514.67 and 194,533.26

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Solution

The fourth proportional to 279,231.72, 418,514.67 and 194,533.26 is: 291,567.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,231.72 : 418,514.67 = 194,533.26 : x
  2. Step 2: Convert to fraction form
    279,231.72/418,514.67 = 194,533.26/x
  3. Step 3: Cross multiply
    279,231.72x = 418,514.67 × 194,533.26
  4. Step 4: Simplify right side
    279,231.72x = 81,415,023,112.92
  5. Step 5: Solve for x
    x = 81,415,023,112.92/279,231.72
  6. Step 6: Final answer
    x = 291,567.96

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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.