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Finding the Fourth Proportional to 548,659.62, 822,906.26 and 149,331.50

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Solution

The fourth proportional to 548,659.62, 822,906.26 and 149,331.50 is: 223,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,659.62 : 822,906.26 = 149,331.50 : x
  2. Step 2: Convert to fraction form
    548,659.62/822,906.26 = 149,331.50/x
  3. Step 3: Cross multiply
    548,659.62x = 822,906.26 × 149,331.50
  4. Step 4: Simplify right side
    548,659.62x = 122,885,826,165.19
  5. Step 5: Solve for x
    x = 122,885,826,165.19/548,659.62
  6. Step 6: Final answer
    x = 223,974.61

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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.