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Finding the Fourth Proportional to 419,666.52, 629,496.54 and 120,154.44

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Solution

The fourth proportional to 419,666.52, 629,496.54 and 120,154.44 is: 180,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,666.52 : 629,496.54 = 120,154.44 : x
  2. Step 2: Convert to fraction form
    419,666.52/629,496.54 = 120,154.44/x
  3. Step 3: Cross multiply
    419,666.52x = 629,496.54 × 120,154.44
  4. Step 4: Simplify right side
    419,666.52x = 75,636,804,245.64
  5. Step 5: Solve for x
    x = 75,636,804,245.64/419,666.52
  6. Step 6: Final answer
    x = 180,230.73

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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.