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Finding the Fourth Proportional to 267,640.36, 401,528.04 and 188,908.36

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Solution

The fourth proportional to 267,640.36, 401,528.04 and 188,908.36 is: 283,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,640.36 : 401,528.04 = 188,908.36 : x
  2. Step 2: Convert to fraction form
    267,640.36/401,528.04 = 188,908.36/x
  3. Step 3: Cross multiply
    267,640.36x = 401,528.04 × 188,908.36
  4. Step 4: Simplify right side
    267,640.36x = 75,852,003,530.41
  5. Step 5: Solve for x
    x = 75,852,003,530.41/267,640.36
  6. Step 6: Final answer
    x = 283,410.18

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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.