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Finding the Fourth Proportional to 143,157.75, 214,648.41 and 48,379.01

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Solution

The fourth proportional to 143,157.75, 214,648.41 and 48,379.01 is: 72,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,157.75 : 214,648.41 = 48,379.01 : x
  2. Step 2: Convert to fraction form
    143,157.75/214,648.41 = 48,379.01/x
  3. Step 3: Cross multiply
    143,157.75x = 214,648.41 × 48,379.01
  4. Step 4: Simplify right side
    143,157.75x = 10,384,476,682.05
  5. Step 5: Solve for x
    x = 10,384,476,682.05/143,157.75
  6. Step 6: Final answer
    x = 72,538.70

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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.