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Finding the Fourth Proportional to 143,107.50, 214,661.26 and 44,611.50

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Solution

The fourth proportional to 143,107.50, 214,661.26 and 44,611.50 is: 66,917.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,107.50 : 214,661.26 = 44,611.50 : x
  2. Step 2: Convert to fraction form
    143,107.50/214,661.26 = 44,611.50/x
  3. Step 3: Cross multiply
    143,107.50x = 214,661.26 × 44,611.50
  4. Step 4: Simplify right side
    143,107.50x = 9,576,360,800.49
  5. Step 5: Solve for x
    x = 9,576,360,800.49/143,107.50
  6. Step 6: Final answer
    x = 66,917.25

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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.