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Finding the Fourth Proportional to 203,861.80, 304,419.80 and 166,496.00

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Solution

The fourth proportional to 203,861.80, 304,419.80 and 166,496.00 is: 248,622.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,861.80 : 304,419.80 = 166,496.00 : x
  2. Step 2: Convert to fraction form
    203,861.80/304,419.80 = 166,496.00/x
  3. Step 3: Cross multiply
    203,861.80x = 304,419.80 × 166,496.00
  4. Step 4: Simplify right side
    203,861.80x = 50,684,676,666.22
  5. Step 5: Solve for x
    x = 50,684,676,666.22/203,861.80
  6. Step 6: Final answer
    x = 248,622.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.