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Finding the Fourth Proportional to 194,481.72, 291,774.44 and 69,823.80

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Solution

The fourth proportional to 194,481.72, 291,774.44 and 69,823.80 is: 104,754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,481.72 : 291,774.44 = 69,823.80 : x
  2. Step 2: Convert to fraction form
    194,481.72/291,774.44 = 69,823.80/x
  3. Step 3: Cross multiply
    194,481.72x = 291,774.44 × 69,823.80
  4. Step 4: Simplify right side
    194,481.72x = 20,372,800,143.67
  5. Step 5: Solve for x
    x = 20,372,800,143.67/194,481.72
  6. Step 6: Final answer
    x = 104,754.32

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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.