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Finding the Fourth Proportional to 143,237.92, 213,805.46 and 132,682

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Solution

The fourth proportional to 143,237.92, 213,805.46 and 132,682 is: 198,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,237.92 : 213,805.46 = 132,682 : x
  2. Step 2: Convert to fraction form
    143,237.92/213,805.46 = 132,682/x
  3. Step 3: Cross multiply
    143,237.92x = 213,805.46 × 132,682
  4. Step 4: Simplify right side
    143,237.92x = 28,368,136,043.72
  5. Step 5: Solve for x
    x = 28,368,136,043.72/143,237.92
  6. Step 6: Final answer
    x = 198,049.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.