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Finding the Fourth Proportional to 143,271.70, 214,895.16 and 48,499.85

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Solution

The fourth proportional to 143,271.70, 214,895.16 and 48,499.85 is: 72,745.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,271.70 : 214,895.16 = 48,499.85 : x
  2. Step 2: Convert to fraction form
    143,271.70/214,895.16 = 48,499.85/x
  3. Step 3: Cross multiply
    143,271.70x = 214,895.16 × 48,499.85
  4. Step 4: Simplify right side
    143,271.70x = 10,422,383,562.96
  5. Step 5: Solve for x
    x = 10,422,383,562.96/143,271.70
  6. Step 6: Final answer
    x = 72,745.59

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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.