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Finding the Fourth Proportional to 450,912.92, 676,209.83 and 130,998.23

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Solution

The fourth proportional to 450,912.92, 676,209.83 and 130,998.23 is: 196,450.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,912.92 : 676,209.83 = 130,998.23 : x
  2. Step 2: Convert to fraction form
    450,912.92/676,209.83 = 130,998.23/x
  3. Step 3: Cross multiply
    450,912.92x = 676,209.83 × 130,998.23
  4. Step 4: Simplify right side
    450,912.92x = 88,582,289,338.35
  5. Step 5: Solve for x
    x = 88,582,289,338.35/450,912.92
  6. Step 6: Final answer
    x = 196,450.99

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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.