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Finding the Fourth Proportional to 199,173.78, 298,848.98 and 104,381.44

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Solution

The fourth proportional to 199,173.78, 298,848.98 and 104,381.44 is: 156,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,173.78 : 298,848.98 = 104,381.44 : x
  2. Step 2: Convert to fraction form
    199,173.78/298,848.98 = 104,381.44/x
  3. Step 3: Cross multiply
    199,173.78x = 298,848.98 × 104,381.44
  4. Step 4: Simplify right side
    199,173.78x = 31,194,286,388.76
  5. Step 5: Solve for x
    x = 31,194,286,388.76/199,173.78
  6. Step 6: Final answer
    x = 156,618.44

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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.