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Finding the Fourth Proportional to 260,945.82, 360,105.21 and 147,790.44

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Solution

The fourth proportional to 260,945.82, 360,105.21 and 147,790.44 is: 203,950.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,945.82 : 360,105.21 = 147,790.44 : x
  2. Step 2: Convert to fraction form
    260,945.82/360,105.21 = 147,790.44/x
  3. Step 3: Cross multiply
    260,945.82x = 360,105.21 × 147,790.44
  4. Step 4: Simplify right side
    260,945.82x = 53,220,107,432.19
  5. Step 5: Solve for x
    x = 53,220,107,432.19/260,945.82
  6. Step 6: Final answer
    x = 203,950.79

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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.