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Finding the Fourth Proportional to 271,536.70, 407,303.02 and 81,996.70

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Solution

The fourth proportional to 271,536.70, 407,303.02 and 81,996.70 is: 122,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,536.70 : 407,303.02 = 81,996.70 : x
  2. Step 2: Convert to fraction form
    271,536.70/407,303.02 = 81,996.70/x
  3. Step 3: Cross multiply
    271,536.70x = 407,303.02 × 81,996.70
  4. Step 4: Simplify right side
    271,536.70x = 33,397,503,540.03
  5. Step 5: Solve for x
    x = 33,397,503,540.03/271,536.70
  6. Step 6: Final answer
    x = 122,994.44

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1.5x scale

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.