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Finding the Fourth Proportional to 351,595.43, 485,166.93 and 196,517.69

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Solution

The fourth proportional to 351,595.43, 485,166.93 and 196,517.69 is: 271,174.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,595.43 : 485,166.93 = 196,517.69 : x
  2. Step 2: Convert to fraction form
    351,595.43/485,166.93 = 196,517.69/x
  3. Step 3: Cross multiply
    351,595.43x = 485,166.93 × 196,517.69
  4. Step 4: Simplify right side
    351,595.43x = 95,343,881,922.16
  5. Step 5: Solve for x
    x = 95,343,881,922.16/351,595.43
  6. Step 6: Final answer
    x = 271,174.98

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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.