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Finding the Fourth Proportional to 194,647.82, 291,793.36 and 68,219.15

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Solution

The fourth proportional to 194,647.82, 291,793.36 and 68,219.15 is: 102,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,647.82 : 291,793.36 = 68,219.15 : x
  2. Step 2: Convert to fraction form
    194,647.82/291,793.36 = 68,219.15/x
  3. Step 3: Cross multiply
    194,647.82x = 291,793.36 × 68,219.15
  4. Step 4: Simplify right side
    194,647.82x = 19,905,894,994.84
  5. Step 5: Solve for x
    x = 19,905,894,994.84/194,647.82
  6. Step 6: Final answer
    x = 102,266.21

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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.