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Finding the Fourth Proportional to 331,471.92, 496,763.40 and 181,486.32

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Solution

The fourth proportional to 331,471.92, 496,763.40 and 181,486.32 is: 271,986.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,471.92 : 496,763.40 = 181,486.32 : x
  2. Step 2: Convert to fraction form
    331,471.92/496,763.40 = 181,486.32/x
  3. Step 3: Cross multiply
    331,471.92x = 496,763.40 × 181,486.32
  4. Step 4: Simplify right side
    331,471.92x = 90,155,761,376.69
  5. Step 5: Solve for x
    x = 90,155,761,376.69/331,471.92
  6. Step 6: Final answer
    x = 271,986.12

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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.