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Finding the Fourth Proportional to 499,906.85, 749,859.74 and 162,947.39

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Solution

The fourth proportional to 499,906.85, 749,859.74 and 162,947.39 is: 244,420.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,906.85 : 749,859.74 = 162,947.39 : x
  2. Step 2: Convert to fraction form
    499,906.85/749,859.74 = 162,947.39/x
  3. Step 3: Cross multiply
    499,906.85x = 749,859.74 × 162,947.39
  4. Step 4: Simplify right side
    499,906.85x = 122,187,686,684.34
  5. Step 5: Solve for x
    x = 122,187,686,684.34/499,906.85
  6. Step 6: Final answer
    x = 244,420.91

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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.