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Finding the Fourth Proportional to 189,682.26, 261,766.83 and 104,804.82

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Solution

The fourth proportional to 189,682.26, 261,766.83 and 104,804.82 is: 144,633.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,682.26 : 261,766.83 = 104,804.82 : x
  2. Step 2: Convert to fraction form
    189,682.26/261,766.83 = 104,804.82/x
  3. Step 3: Cross multiply
    189,682.26x = 261,766.83 × 104,804.82
  4. Step 4: Simplify right side
    189,682.26x = 27,434,425,500.12
  5. Step 5: Solve for x
    x = 27,434,425,500.12/189,682.26
  6. Step 6: Final answer
    x = 144,633.59

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1.5x scale

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.