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Finding the Fourth Proportional to 188,908.75, 260,694.08 and 104,025.61

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Solution

The fourth proportional to 188,908.75, 260,694.08 and 104,025.61 is: 143,555.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,908.75 : 260,694.08 = 104,025.61 : x
  2. Step 2: Convert to fraction form
    188,908.75/260,694.08 = 104,025.61/x
  3. Step 3: Cross multiply
    188,908.75x = 260,694.08 × 104,025.61
  4. Step 4: Simplify right side
    188,908.75x = 27,118,860,695.39
  5. Step 5: Solve for x
    x = 27,118,860,695.39/188,908.75
  6. Step 6: Final answer
    x = 143,555.34

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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.