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Finding the Fourth Proportional to 329,059.86, 493,589.79 and 89,173.75

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Solution

The fourth proportional to 329,059.86, 493,589.79 and 89,173.75 is: 133,760.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,059.86 : 493,589.79 = 89,173.75 : x
  2. Step 2: Convert to fraction form
    329,059.86/493,589.79 = 89,173.75/x
  3. Step 3: Cross multiply
    329,059.86x = 493,589.79 × 89,173.75
  4. Step 4: Simplify right side
    329,059.86x = 44,015,253,741.14
  5. Step 5: Solve for x
    x = 44,015,253,741.14/329,059.86
  6. Step 6: Final answer
    x = 133,760.63

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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.