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Finding the Fourth Proportional to 332,679.43, 459,097.16 and 189,439.47

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Solution

The fourth proportional to 332,679.43, 459,097.16 and 189,439.47 is: 261,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,679.43 : 459,097.16 = 189,439.47 : x
  2. Step 2: Convert to fraction form
    332,679.43/459,097.16 = 189,439.47/x
  3. Step 3: Cross multiply
    332,679.43x = 459,097.16 × 189,439.47
  4. Step 4: Simplify right side
    332,679.43x = 86,971,122,668.91
  5. Step 5: Solve for x
    x = 86,971,122,668.91/332,679.43
  6. Step 6: Final answer
    x = 261,426.21

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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.