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Finding the Fourth Proportional to 321,777.56, 482,694.71 and 119,376.01

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Solution

The fourth proportional to 321,777.56, 482,694.71 and 119,376.01 is: 179,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,777.56 : 482,694.71 = 119,376.01 : x
  2. Step 2: Convert to fraction form
    321,777.56/482,694.71 = 119,376.01/x
  3. Step 3: Cross multiply
    321,777.56x = 482,694.71 × 119,376.01
  4. Step 4: Simplify right side
    321,777.56x = 57,622,168,527.91
  5. Step 5: Solve for x
    x = 57,622,168,527.91/321,777.56
  6. Step 6: Final answer
    x = 179,074.54

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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.