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Finding the Fourth Proportional to 449,052.80, 673,573.44 and 129,212.48

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Solution

The fourth proportional to 449,052.80, 673,573.44 and 129,212.48 is: 193,817.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,052.80 : 673,573.44 = 129,212.48 : x
  2. Step 2: Convert to fraction form
    449,052.80/673,573.44 = 129,212.48/x
  3. Step 3: Cross multiply
    449,052.80x = 673,573.44 × 129,212.48
  4. Step 4: Simplify right side
    449,052.80x = 87,034,094,644.53
  5. Step 5: Solve for x
    x = 87,034,094,644.53/449,052.80
  6. Step 6: Final answer
    x = 193,817.06

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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.