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Finding the Fourth Proportional to 351,594.12, 485,165.16 and 196,516.80

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Solution

The fourth proportional to 351,594.12, 485,165.16 and 196,516.80 is: 271,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,594.12 : 485,165.16 = 196,516.80 : x
  2. Step 2: Convert to fraction form
    351,594.12/485,165.16 = 196,516.80/x
  3. Step 3: Cross multiply
    351,594.12x = 485,165.16 × 196,516.80
  4. Step 4: Simplify right side
    351,594.12x = 95,343,104,714.69
  5. Step 5: Solve for x
    x = 95,343,104,714.69/351,594.12
  6. Step 6: Final answer
    x = 271,173.77

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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.