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Finding the Fourth Proportional to 250,990.14, 376,405.38 and 82,471.67

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Solution

The fourth proportional to 250,990.14, 376,405.38 and 82,471.67 is: 123,681.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,990.14 : 376,405.38 = 82,471.67 : x
  2. Step 2: Convert to fraction form
    250,990.14/376,405.38 = 82,471.67/x
  3. Step 3: Cross multiply
    250,990.14x = 376,405.38 × 82,471.67
  4. Step 4: Simplify right side
    250,990.14x = 31,042,779,815.08
  5. Step 5: Solve for x
    x = 31,042,779,815.08/250,990.14
  6. Step 6: Final answer
    x = 123,681.27

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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.