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Finding the Fourth Proportional to 328,853.15, 493,293.44 and 104,208.61

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Solution

The fourth proportional to 328,853.15, 493,293.44 and 104,208.61 is: 156,317.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,853.15 : 493,293.44 = 104,208.61 : x
  2. Step 2: Convert to fraction form
    328,853.15/493,293.44 = 104,208.61/x
  3. Step 3: Cross multiply
    328,853.15x = 493,293.44 × 104,208.61
  4. Step 4: Simplify right side
    328,853.15x = 51,405,423,656.73
  5. Step 5: Solve for x
    x = 51,405,423,656.73/328,853.15
  6. Step 6: Final answer
    x = 156,317.26

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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.