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Finding the Fourth Proportional to 371,680.88, 557,521.44 and 91,198.12

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Solution

The fourth proportional to 371,680.88, 557,521.44 and 91,198.12 is: 136,797.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,680.88 : 557,521.44 = 91,198.12 : x
  2. Step 2: Convert to fraction form
    371,680.88/557,521.44 = 91,198.12/x
  3. Step 3: Cross multiply
    371,680.88x = 557,521.44 × 91,198.12
  4. Step 4: Simplify right side
    371,680.88x = 50,844,907,187.69
  5. Step 5: Solve for x
    x = 50,844,907,187.69/371,680.88
  6. Step 6: Final answer
    x = 136,797.21

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1.5x scale

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.