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Finding the Fourth Proportional to 188,915.70, 283,373.55 and 164,311.95

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Solution

The fourth proportional to 188,915.70, 283,373.55 and 164,311.95 is: 246,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,915.70 : 283,373.55 = 164,311.95 : x
  2. Step 2: Convert to fraction form
    188,915.70/283,373.55 = 164,311.95/x
  3. Step 3: Cross multiply
    188,915.70x = 283,373.55 × 164,311.95
  4. Step 4: Simplify right side
    188,915.70x = 46,561,660,578.92
  5. Step 5: Solve for x
    x = 46,561,660,578.92/188,915.70
  6. Step 6: Final answer
    x = 246,467.93

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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.