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Finding the Fourth Proportional to 321,086.17, 481,652.34 and 110,721.07

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Solution

The fourth proportional to 321,086.17, 481,652.34 and 110,721.07 is: 166,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,086.17 : 481,652.34 = 110,721.07 : x
  2. Step 2: Convert to fraction form
    321,086.17/481,652.34 = 110,721.07/x
  3. Step 3: Cross multiply
    321,086.17x = 481,652.34 × 110,721.07
  4. Step 4: Simplify right side
    321,086.17x = 53,329,062,452.80
  5. Step 5: Solve for x
    x = 53,329,062,452.80/321,086.17
  6. Step 6: Final answer
    x = 166,089.57

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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.