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Finding the Fourth Proportional to 332,668.71, 459,087.20 and 189,429.32

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Solution

The fourth proportional to 332,668.71, 459,087.20 and 189,429.32 is: 261,414.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,668.71 : 459,087.20 = 189,429.32 : x
  2. Step 2: Convert to fraction form
    332,668.71/459,087.20 = 189,429.32/x
  3. Step 3: Cross multiply
    332,668.71x = 459,087.20 × 189,429.32
  4. Step 4: Simplify right side
    332,668.71x = 86,964,576,116.70
  5. Step 5: Solve for x
    x = 86,964,576,116.70/332,668.71
  6. Step 6: Final answer
    x = 261,414.96

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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.