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Finding the Fourth Proportional to 320,979.66, 481,183.97 and 152,395.98

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Solution

The fourth proportional to 320,979.66, 481,183.97 and 152,395.98 is: 228,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,979.66 : 481,183.97 = 152,395.98 : x
  2. Step 2: Convert to fraction form
    320,979.66/481,183.97 = 152,395.98/x
  3. Step 3: Cross multiply
    320,979.66x = 481,183.97 × 152,395.98
  4. Step 4: Simplify right side
    320,979.66x = 73,330,501,906.46
  5. Step 5: Solve for x
    x = 73,330,501,906.46/320,979.66
  6. Step 6: Final answer
    x = 228,458.41

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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.