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Finding the Fourth Proportional to 189,080.73, 260,930.88 and 104,197.77

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Solution

The fourth proportional to 189,080.73, 260,930.88 and 104,197.77 is: 143,792.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,080.73 : 260,930.88 = 104,197.77 : x
  2. Step 2: Convert to fraction form
    189,080.73/260,930.88 = 104,197.77/x
  3. Step 3: Cross multiply
    189,080.73x = 260,930.88 × 104,197.77
  4. Step 4: Simplify right side
    189,080.73x = 27,188,415,820.14
  5. Step 5: Solve for x
    x = 27,188,415,820.14/189,080.73
  6. Step 6: Final answer
    x = 143,792.63

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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.