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Finding the Fourth Proportional to 333,081.10, 499,617 and 80,359.44

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Solution

The fourth proportional to 333,081.10, 499,617 and 80,359.44 is: 120,538.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,081.10 : 499,617 = 80,359.44 : x
  2. Step 2: Convert to fraction form
    333,081.10/499,617 = 80,359.44/x
  3. Step 3: Cross multiply
    333,081.10x = 499,617 × 80,359.44
  4. Step 4: Simplify right side
    333,081.10x = 40,148,942,334.48
  5. Step 5: Solve for x
    x = 40,148,942,334.48/333,081.10
  6. Step 6: Final answer
    x = 120,538.04

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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.