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Finding the Fourth Proportional to 328,659.88, 493,046.52 and 104,016.64

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Solution

The fourth proportional to 328,659.88, 493,046.52 and 104,016.64 is: 156,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,659.88 : 493,046.52 = 104,016.64 : x
  2. Step 2: Convert to fraction form
    328,659.88/493,046.52 = 104,016.64/x
  3. Step 3: Cross multiply
    328,659.88x = 493,046.52 × 104,016.64
  4. Step 4: Simplify right side
    328,659.88x = 51,285,042,374.09
  5. Step 5: Solve for x
    x = 51,285,042,374.09/328,659.88
  6. Step 6: Final answer
    x = 156,042.90

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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.