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Finding the Fourth Proportional to 320,843.16, 481,737.86 and 178,965.64

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Solution

The fourth proportional to 320,843.16, 481,737.86 and 178,965.64 is: 268,712.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,843.16 : 481,737.86 = 178,965.64 : x
  2. Step 2: Convert to fraction form
    320,843.16/481,737.86 = 178,965.64/x
  3. Step 3: Cross multiply
    320,843.16x = 481,737.86 × 178,965.64
  4. Step 4: Simplify right side
    320,843.16x = 86,214,524,427.13
  5. Step 5: Solve for x
    x = 86,214,524,427.13/320,843.16
  6. Step 6: Final answer
    x = 268,712.37

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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.