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Finding the Fourth Proportional to 329,226.50, 493,836.14 and 79,908.50

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Solution

The fourth proportional to 329,226.50, 493,836.14 and 79,908.50 is: 119,861.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,226.50 : 493,836.14 = 79,908.50 : x
  2. Step 2: Convert to fraction form
    329,226.50/493,836.14 = 79,908.50/x
  3. Step 3: Cross multiply
    329,226.50x = 493,836.14 × 79,908.50
  4. Step 4: Simplify right side
    329,226.50x = 39,461,702,923.78
  5. Step 5: Solve for x
    x = 39,461,702,923.78/329,226.50
  6. Step 6: Final answer
    x = 119,861.87

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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.