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Finding the Fourth Proportional to 194,523.50, 268,442.44 and 105,099.50

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Solution

The fourth proportional to 194,523.50, 268,442.44 and 105,099.50 is: 145,037.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,523.50 : 268,442.44 = 105,099.50 : x
  2. Step 2: Convert to fraction form
    194,523.50/268,442.44 = 105,099.50/x
  3. Step 3: Cross multiply
    194,523.50x = 268,442.44 × 105,099.50
  4. Step 4: Simplify right side
    194,523.50x = 28,213,166,222.78
  5. Step 5: Solve for x
    x = 28,213,166,222.78/194,523.50
  6. Step 6: Final answer
    x = 145,037.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.