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Finding the Fourth Proportional to 207,583.56, 311,419.08 and 67,331.25

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Solution

The fourth proportional to 207,583.56, 311,419.08 and 67,331.25 is: 101,011.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,583.56 : 311,419.08 = 67,331.25 : x
  2. Step 2: Convert to fraction form
    207,583.56/311,419.08 = 67,331.25/x
  3. Step 3: Cross multiply
    207,583.56x = 311,419.08 × 67,331.25
  4. Step 4: Simplify right side
    207,583.56x = 20,968,235,930.25
  5. Step 5: Solve for x
    x = 20,968,235,930.25/207,583.56
  6. Step 6: Final answer
    x = 101,011.06

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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.