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Finding the Fourth Proportional to 351,054.84, 484,456.86 and 189,910.56

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Solution

The fourth proportional to 351,054.84, 484,456.86 and 189,910.56 is: 262,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,054.84 : 484,456.86 = 189,910.56 : x
  2. Step 2: Convert to fraction form
    351,054.84/484,456.86 = 189,910.56/x
  3. Step 3: Cross multiply
    351,054.84x = 484,456.86 × 189,910.56
  4. Step 4: Simplify right side
    351,054.84x = 92,003,473,578.44
  5. Step 5: Solve for x
    x = 92,003,473,578.44/351,054.84
  6. Step 6: Final answer
    x = 262,077.21

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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.