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Finding the Fourth Proportional to 479,181.82, 718,837.53 and 163,553.98

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Solution

The fourth proportional to 479,181.82, 718,837.53 and 163,553.98 is: 245,353.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,181.82 : 718,837.53 = 163,553.98 : x
  2. Step 2: Convert to fraction form
    479,181.82/718,837.53 = 163,553.98/x
  3. Step 3: Cross multiply
    479,181.82x = 718,837.53 × 163,553.98
  4. Step 4: Simplify right side
    479,181.82x = 117,568,739,004.87
  5. Step 5: Solve for x
    x = 117,568,739,004.87/479,181.82
  6. Step 6: Final answer
    x = 245,353.09

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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.