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Finding the Fourth Proportional to 358,100.90, 494,163.89 and 196,945.53

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Solution

The fourth proportional to 358,100.90, 494,163.89 and 196,945.53 is: 271,776.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,100.90 : 494,163.89 = 196,945.53 : x
  2. Step 2: Convert to fraction form
    358,100.90/494,163.89 = 196,945.53/x
  3. Step 3: Cross multiply
    358,100.90x = 494,163.89 × 196,945.53
  4. Step 4: Simplify right side
    358,100.90x = 97,323,367,123.62
  5. Step 5: Solve for x
    x = 97,323,367,123.62/358,100.90
  6. Step 6: Final answer
    x = 271,776.38

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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.