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Finding the Fourth Proportional to 366,906.99, 550,415.13 and 130,229.85

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Solution

The fourth proportional to 366,906.99, 550,415.13 and 130,229.85 is: 195,364.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,906.99 : 550,415.13 = 130,229.85 : x
  2. Step 2: Convert to fraction form
    366,906.99/550,415.13 = 130,229.85/x
  3. Step 3: Cross multiply
    366,906.99x = 550,415.13 × 130,229.85
  4. Step 4: Simplify right side
    366,906.99x = 71,680,479,817.63
  5. Step 5: Solve for x
    x = 71,680,479,817.63/366,906.99
  6. Step 6: Final answer
    x = 195,364.17

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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.