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Finding the Fourth Proportional to 203,932.88, 305,930.34 and 104,038.52

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Solution

The fourth proportional to 203,932.88, 305,930.34 and 104,038.52 is: 156,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,932.88 : 305,930.34 = 104,038.52 : x
  2. Step 2: Convert to fraction form
    203,932.88/305,930.34 = 104,038.52/x
  3. Step 3: Cross multiply
    203,932.88x = 305,930.34 × 104,038.52
  4. Step 4: Simplify right side
    203,932.88x = 31,828,538,267.05
  5. Step 5: Solve for x
    x = 31,828,538,267.05/203,932.88
  6. Step 6: Final answer
    x = 156,073.60

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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.