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Finding the Fourth Proportional to 104,576.57, 156,889.45 and 34,455.88

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Solution

The fourth proportional to 104,576.57, 156,889.45 and 34,455.88 is: 51,691.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,576.57 : 156,889.45 = 34,455.88 : x
  2. Step 2: Convert to fraction form
    104,576.57/156,889.45 = 34,455.88/x
  3. Step 3: Cross multiply
    104,576.57x = 156,889.45 × 34,455.88
  4. Step 4: Simplify right side
    104,576.57x = 5,405,763,278.02
  5. Step 5: Solve for x
    x = 5,405,763,278.02/104,576.57
  6. Step 6: Final answer
    x = 51,691.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.