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Finding the Fourth Proportional to 332,687.43, 459,113.07 and 189,448.03

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Solution

The fourth proportional to 332,687.43, 459,113.07 and 189,448.03 is: 261,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,687.43 : 459,113.07 = 189,448.03 : x
  2. Step 2: Convert to fraction form
    332,687.43/459,113.07 = 189,448.03/x
  3. Step 3: Cross multiply
    332,687.43x = 459,113.07 × 189,448.03
  4. Step 4: Simplify right side
    332,687.43x = 86,978,066,658.75
  5. Step 5: Solve for x
    x = 86,978,066,658.75/332,687.43
  6. Step 6: Final answer
    x = 261,440.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.