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Finding the Fourth Proportional to 395,948.80, 594,033.72 and 129,896.44

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Solution

The fourth proportional to 395,948.80, 594,033.72 and 129,896.44 is: 194,880.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,948.80 : 594,033.72 = 129,896.44 : x
  2. Step 2: Convert to fraction form
    395,948.80/594,033.72 = 129,896.44/x
  3. Step 3: Cross multiply
    395,948.80x = 594,033.72 × 129,896.44
  4. Step 4: Simplify right side
    395,948.80x = 77,162,865,467.96
  5. Step 5: Solve for x
    x = 77,162,865,467.96/395,948.80
  6. Step 6: Final answer
    x = 194,880.92

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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.