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Finding the Fourth Proportional to 333,990.92, 500,879.46 and 109,290.44

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Solution

The fourth proportional to 333,990.92, 500,879.46 and 109,290.44 is: 163,900.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,990.92 : 500,879.46 = 109,290.44 : x
  2. Step 2: Convert to fraction form
    333,990.92/500,879.46 = 109,290.44/x
  3. Step 3: Cross multiply
    333,990.92x = 500,879.46 × 109,290.44
  4. Step 4: Simplify right side
    333,990.92x = 54,741,336,570.36
  5. Step 5: Solve for x
    x = 54,741,336,570.36/333,990.92
  6. Step 6: Final answer
    x = 163,900.67

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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.