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Finding the Fourth Proportional to 143,940.44, 215,858.82 and 60,840.92

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Solution

The fourth proportional to 143,940.44, 215,858.82 and 60,840.92 is: 91,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,940.44 : 215,858.82 = 60,840.92 : x
  2. Step 2: Convert to fraction form
    143,940.44/215,858.82 = 60,840.92/x
  3. Step 3: Cross multiply
    143,940.44x = 215,858.82 × 60,840.92
  4. Step 4: Simplify right side
    143,940.44x = 13,133,049,198.91
  5. Step 5: Solve for x
    x = 13,133,049,198.91/143,940.44
  6. Step 6: Final answer
    x = 91,239.47

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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.