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Finding the Fourth Proportional to 321,104.22, 481,726.80 and 107,864.43

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Solution

The fourth proportional to 321,104.22, 481,726.80 and 107,864.43 is: 161,820.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,104.22 : 481,726.80 = 107,864.43 : x
  2. Step 2: Convert to fraction form
    321,104.22/481,726.80 = 107,864.43/x
  3. Step 3: Cross multiply
    321,104.22x = 481,726.80 × 107,864.43
  4. Step 4: Simplify right side
    321,104.22x = 51,961,186,697.72
  5. Step 5: Solve for x
    x = 51,961,186,697.72/321,104.22
  6. Step 6: Final answer
    x = 161,820.32

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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.