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Finding the Fourth Proportional to 396,021.71, 594,074.09 and 111,710.00

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Solution

The fourth proportional to 396,021.71, 594,074.09 and 111,710.00 is: 167,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,021.71 : 594,074.09 = 111,710.00 : x
  2. Step 2: Convert to fraction form
    396,021.71/594,074.09 = 111,710.00/x
  3. Step 3: Cross multiply
    396,021.71x = 594,074.09 × 111,710.00
  4. Step 4: Simplify right side
    396,021.71x = 66,364,018,358.36
  5. Step 5: Solve for x
    x = 66,364,018,358.36/396,021.71
  6. Step 6: Final answer
    x = 167,576.72

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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.