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Finding the Fourth Proportional to 356,790.25, 492,385.49 and 195,651.51

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Solution

The fourth proportional to 356,790.25, 492,385.49 and 195,651.51 is: 270,007.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,790.25 : 492,385.49 = 195,651.51 : x
  2. Step 2: Convert to fraction form
    356,790.25/492,385.49 = 195,651.51/x
  3. Step 3: Cross multiply
    356,790.25x = 492,385.49 × 195,651.51
  4. Step 4: Simplify right side
    356,790.25x = 96,335,964,620.59
  5. Step 5: Solve for x
    x = 96,335,964,620.59/356,790.25
  6. Step 6: Final answer
    x = 270,007.28

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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.