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Finding the Fourth Proportional to 356,980.25, 492,639.23 and 195,843.53

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Solution

The fourth proportional to 356,980.25, 492,639.23 and 195,843.53 is: 270,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,980.25 : 492,639.23 = 195,843.53 : x
  2. Step 2: Convert to fraction form
    356,980.25/492,639.23 = 195,843.53/x
  3. Step 3: Cross multiply
    356,980.25x = 492,639.23 × 195,843.53
  4. Step 4: Simplify right side
    356,980.25x = 96,480,205,819.68
  5. Step 5: Solve for x
    x = 96,480,205,819.68/356,980.25
  6. Step 6: Final answer
    x = 270,267.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.