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Finding the Fourth Proportional to 281,512.86, 388,425.33 and 166,734.24

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Solution

The fourth proportional to 281,512.86, 388,425.33 and 166,734.24 is: 230,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,512.86 : 388,425.33 = 166,734.24 : x
  2. Step 2: Convert to fraction form
    281,512.86/388,425.33 = 166,734.24/x
  3. Step 3: Cross multiply
    281,512.86x = 388,425.33 × 166,734.24
  4. Step 4: Simplify right side
    281,512.86x = 64,763,802,194.30
  5. Step 5: Solve for x
    x = 64,763,802,194.30/281,512.86
  6. Step 6: Final answer
    x = 230,056.28

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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.