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Finding the Fourth Proportional to 143,872.75, 215,896.61 and 60,766.75

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Solution

The fourth proportional to 143,872.75, 215,896.61 and 60,766.75 is: 91,187.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,872.75 : 215,896.61 = 60,766.75 : x
  2. Step 2: Convert to fraction form
    143,872.75/215,896.61 = 60,766.75/x
  3. Step 3: Cross multiply
    143,872.75x = 215,896.61 × 60,766.75
  4. Step 4: Simplify right side
    143,872.75x = 13,119,335,325.72
  5. Step 5: Solve for x
    x = 13,119,335,325.72/143,872.75
  6. Step 6: Final answer
    x = 91,187.08

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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.