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Finding the Fourth Proportional to 85,993.32, 129,026.94 and 44,469.48

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Solution

The fourth proportional to 85,993.32, 129,026.94 and 44,469.48 is: 66,723.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,993.32 : 129,026.94 = 44,469.48 : x
  2. Step 2: Convert to fraction form
    85,993.32/129,026.94 = 44,469.48/x
  3. Step 3: Cross multiply
    85,993.32x = 129,026.94 × 44,469.48
  4. Step 4: Simplify right side
    85,993.32x = 5,737,760,927.79
  5. Step 5: Solve for x
    x = 5,737,760,927.79/85,993.32
  6. Step 6: Final answer
    x = 66,723.33

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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.