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Finding the Fourth Proportional to 104,576.72, 156,863.71 and 25,691.63

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Solution

The fourth proportional to 104,576.72, 156,863.71 and 25,691.63 is: 38,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,576.72 : 156,863.71 = 25,691.63 : x
  2. Step 2: Convert to fraction form
    104,576.72/156,863.71 = 25,691.63/x
  3. Step 3: Cross multiply
    104,576.72x = 156,863.71 × 25,691.63
  4. Step 4: Simplify right side
    104,576.72x = 4,030,084,600.16
  5. Step 5: Solve for x
    x = 4,030,084,600.16/104,576.72
  6. Step 6: Final answer
    x = 38,537.11

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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.