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Finding the Fourth Proportional to 165,793.80, 248,690.70 and 136,269.30

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Solution

The fourth proportional to 165,793.80, 248,690.70 and 136,269.30 is: 204,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,793.80 : 248,690.70 = 136,269.30 : x
  2. Step 2: Convert to fraction form
    165,793.80/248,690.70 = 136,269.30/x
  3. Step 3: Cross multiply
    165,793.80x = 248,690.70 × 136,269.30
  4. Step 4: Simplify right side
    165,793.80x = 33,888,907,605.51
  5. Step 5: Solve for x
    x = 33,888,907,605.51/165,793.80
  6. Step 6: Final answer
    x = 204,403.95

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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.