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Finding the Fourth Proportional to 144,871.56, 217,263.14 and 100,180.22

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Solution

The fourth proportional to 144,871.56, 217,263.14 and 100,180.22 is: 150,239.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,871.56 : 217,263.14 = 100,180.22 : x
  2. Step 2: Convert to fraction form
    144,871.56/217,263.14 = 100,180.22/x
  3. Step 3: Cross multiply
    144,871.56x = 217,263.14 × 100,180.22
  4. Step 4: Simplify right side
    144,871.56x = 21,765,469,163.09
  5. Step 5: Solve for x
    x = 21,765,469,163.09/144,871.56
  6. Step 6: Final answer
    x = 150,239.77

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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.