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Finding the Fourth Proportional to 351,003.76, 484,385.30 and 198,074.46

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Solution

The fourth proportional to 351,003.76, 484,385.30 and 198,074.46 is: 273,342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,003.76 : 484,385.30 = 198,074.46 : x
  2. Step 2: Convert to fraction form
    351,003.76/484,385.30 = 198,074.46/x
  3. Step 3: Cross multiply
    351,003.76x = 484,385.30 × 198,074.46
  4. Step 4: Simplify right side
    351,003.76x = 95,944,356,729.44
  5. Step 5: Solve for x
    x = 95,944,356,729.44/351,003.76
  6. Step 6: Final answer
    x = 273,342.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.