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Finding the Fourth Proportional to 203,219.28, 304,779.69 and 84,826.44

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Solution

The fourth proportional to 203,219.28, 304,779.69 and 84,826.44 is: 127,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,219.28 : 304,779.69 = 84,826.44 : x
  2. Step 2: Convert to fraction form
    203,219.28/304,779.69 = 84,826.44/x
  3. Step 3: Cross multiply
    203,219.28x = 304,779.69 × 84,826.44
  4. Step 4: Simplify right side
    203,219.28x = 25,853,376,087.00
  5. Step 5: Solve for x
    x = 25,853,376,087.00/203,219.28
  6. Step 6: Final answer
    x = 127,219.11

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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.