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Finding the Fourth Proportional to 96,012.20, 143,896.80 and 36,768.80

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Solution

The fourth proportional to 96,012.20, 143,896.80 and 36,768.80 is: 55,106.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,012.20 : 143,896.80 = 36,768.80 : x
  2. Step 2: Convert to fraction form
    96,012.20/143,896.80 = 36,768.80/x
  3. Step 3: Cross multiply
    96,012.20x = 143,896.80 × 36,768.80
  4. Step 4: Simplify right side
    96,012.20x = 5,290,912,659.84
  5. Step 5: Solve for x
    x = 5,290,912,659.84/96,012.20
  6. Step 6: Final answer
    x = 55,106.67

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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.