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Finding the Fourth Proportional to 125,894.32, 188,772.44 and 49,915.88

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Solution

The fourth proportional to 125,894.32, 188,772.44 and 49,915.88 is: 74,846.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,894.32 : 188,772.44 = 49,915.88 : x
  2. Step 2: Convert to fraction form
    125,894.32/188,772.44 = 49,915.88/x
  3. Step 3: Cross multiply
    125,894.32x = 188,772.44 × 49,915.88
  4. Step 4: Simplify right side
    125,894.32x = 9,422,741,976.80
  5. Step 5: Solve for x
    x = 9,422,741,976.80/125,894.32
  6. Step 6: Final answer
    x = 74,846.44

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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.