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Finding the Fourth Proportional to 104,608.87, 156,911.93 and 25,723.78

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Solution

The fourth proportional to 104,608.87, 156,911.93 and 25,723.78 is: 38,585.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,608.87 : 156,911.93 = 25,723.78 : x
  2. Step 2: Convert to fraction form
    104,608.87/156,911.93 = 25,723.78/x
  3. Step 3: Cross multiply
    104,608.87x = 156,911.93 × 25,723.78
  4. Step 4: Simplify right side
    104,608.87x = 4,036,367,053.52
  5. Step 5: Solve for x
    x = 4,036,367,053.52/104,608.87
  6. Step 6: Final answer
    x = 38,585.32

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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.