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Finding the Fourth Proportional to 104,006.91, 156,010 and 25,121.15

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Solution

The fourth proportional to 104,006.91, 156,010 and 25,121.15 is: 37,681.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,006.91 : 156,010 = 25,121.15 : x
  2. Step 2: Convert to fraction form
    104,006.91/156,010 = 25,121.15/x
  3. Step 3: Cross multiply
    104,006.91x = 156,010 × 25,121.15
  4. Step 4: Simplify right side
    104,006.91x = 3,919,150,611.50
  5. Step 5: Solve for x
    x = 3,919,150,611.50/104,006.91
  6. Step 6: Final answer
    x = 37,681.64

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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.