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Finding the Fourth Proportional to 366,954.70, 550,432.05 and 130,321.30

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Solution

The fourth proportional to 366,954.70, 550,432.05 and 130,321.30 is: 195,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,954.70 : 550,432.05 = 130,321.30 : x
  2. Step 2: Convert to fraction form
    366,954.70/550,432.05 = 130,321.30/x
  3. Step 3: Cross multiply
    366,954.70x = 550,432.05 × 130,321.30
  4. Step 4: Simplify right side
    366,954.70x = 71,733,020,317.67
  5. Step 5: Solve for x
    x = 71,733,020,317.67/366,954.70
  6. Step 6: Final answer
    x = 195,481.95

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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.