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Finding the Fourth Proportional to 548,649.05, 822,890.43 and 149,320.94

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Solution

The fourth proportional to 548,649.05, 822,890.43 and 149,320.94 is: 223,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,649.05 : 822,890.43 = 149,320.94 : x
  2. Step 2: Convert to fraction form
    548,649.05/822,890.43 = 149,320.94/x
  3. Step 3: Cross multiply
    548,649.05x = 822,890.43 × 149,320.94
  4. Step 4: Simplify right side
    548,649.05x = 122,874,768,410.15
  5. Step 5: Solve for x
    x = 122,874,768,410.15/548,649.05
  6. Step 6: Final answer
    x = 223,958.78

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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.