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Finding the Fourth Proportional to 207,549.56, 311,368.09 and 67,297.26

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Solution

The fourth proportional to 207,549.56, 311,368.09 and 67,297.26 is: 100,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,549.56 : 311,368.09 = 67,297.26 : x
  2. Step 2: Convert to fraction form
    207,549.56/311,368.09 = 67,297.26/x
  3. Step 3: Cross multiply
    207,549.56x = 311,368.09 × 67,297.26
  4. Step 4: Simplify right side
    207,549.56x = 20,954,219,308.43
  5. Step 5: Solve for x
    x = 20,954,219,308.43/207,549.56
  6. Step 6: Final answer
    x = 100,960.08

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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.