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Finding the Fourth Proportional to 357,791.70, 493,761.60 and 196,650.84

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Solution

The fourth proportional to 357,791.70, 493,761.60 and 196,650.84 is: 271,383.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,791.70 : 493,761.60 = 196,650.84 : x
  2. Step 2: Convert to fraction form
    357,791.70/493,761.60 = 196,650.84/x
  3. Step 3: Cross multiply
    357,791.70x = 493,761.60 × 196,650.84
  4. Step 4: Simplify right side
    357,791.70x = 97,098,633,399.74
  5. Step 5: Solve for x
    x = 97,098,633,399.74/357,791.70
  6. Step 6: Final answer
    x = 271,383.14

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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.