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Finding the Fourth Proportional to 203,976.60, 281,481.84 and 116,763.90

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Solution

The fourth proportional to 203,976.60, 281,481.84 and 116,763.90 is: 161,130.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,976.60 : 281,481.84 = 116,763.90 : x
  2. Step 2: Convert to fraction form
    203,976.60/281,481.84 = 116,763.90/x
  3. Step 3: Cross multiply
    203,976.60x = 281,481.84 × 116,763.90
  4. Step 4: Simplify right side
    203,976.60x = 32,866,917,417.58
  5. Step 5: Solve for x
    x = 32,866,917,417.58/203,976.60
  6. Step 6: Final answer
    x = 161,130.82

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1.5x scale

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.