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Finding the Fourth Proportional to 479,212.44, 718,548.90 and 159,193

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Solution

The fourth proportional to 479,212.44, 718,548.90 and 159,193 is: 238,699.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,212.44 : 718,548.90 = 159,193 : x
  2. Step 2: Convert to fraction form
    479,212.44/718,548.90 = 159,193/x
  3. Step 3: Cross multiply
    479,212.44x = 718,548.90 × 159,193
  4. Step 4: Simplify right side
    479,212.44x = 114,387,955,037.70
  5. Step 5: Solve for x
    x = 114,387,955,037.70/479,212.44
  6. Step 6: Final answer
    x = 238,699.89

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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.