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Finding the Fourth Proportional to 262,633.67, 394,073.52 and 129,441.32

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Solution

The fourth proportional to 262,633.67, 394,073.52 and 129,441.32 is: 194,222.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,633.67 : 394,073.52 = 129,441.32 : x
  2. Step 2: Convert to fraction form
    262,633.67/394,073.52 = 129,441.32/x
  3. Step 3: Cross multiply
    262,633.67x = 394,073.52 × 129,441.32
  4. Step 4: Simplify right side
    262,633.67x = 51,009,396,605.85
  5. Step 5: Solve for x
    x = 51,009,396,605.85/262,633.67
  6. Step 6: Final answer
    x = 194,222.61

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1.5x scale

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.