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Finding the Fourth Proportional to 281,955.14, 389,118.68 and 161,093.84

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Solution

The fourth proportional to 281,955.14, 389,118.68 and 161,093.84 is: 222,321.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,955.14 : 389,118.68 = 161,093.84 : x
  2. Step 2: Convert to fraction form
    281,955.14/389,118.68 = 161,093.84/x
  3. Step 3: Cross multiply
    281,955.14x = 389,118.68 × 161,093.84
  4. Step 4: Simplify right side
    281,955.14x = 62,684,622,230.52
  5. Step 5: Solve for x
    x = 62,684,622,230.52/281,955.14
  6. Step 6: Final answer
    x = 222,321.26

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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.