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Finding the Fourth Proportional to 446,571.90, 669,793.05 and 130,995.90

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Solution

The fourth proportional to 446,571.90, 669,793.05 and 130,995.90 is: 196,474.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,571.90 : 669,793.05 = 130,995.90 : x
  2. Step 2: Convert to fraction form
    446,571.90/669,793.05 = 130,995.90/x
  3. Step 3: Cross multiply
    446,571.90x = 669,793.05 × 130,995.90
  4. Step 4: Simplify right side
    446,571.90x = 87,740,143,398.50
  5. Step 5: Solve for x
    x = 87,740,143,398.50/446,571.90
  6. Step 6: Final answer
    x = 196,474.84

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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.