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Finding the Fourth Proportional to 281,622, 388,577.88 and 166,936.80

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Solution

The fourth proportional to 281,622, 388,577.88 and 166,936.80 is: 230,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,622 : 388,577.88 = 166,936.80 : x
  2. Step 2: Convert to fraction form
    281,622/388,577.88 = 166,936.80/x
  3. Step 3: Cross multiply
    281,622x = 388,577.88 × 166,936.80
  4. Step 4: Simplify right side
    281,622x = 64,867,947,837.98
  5. Step 5: Solve for x
    x = 64,867,947,837.98/281,622
  6. Step 6: Final answer
    x = 230,336.93

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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.