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Finding the Fourth Proportional to 75,940.56, 104,847.24 and 67,968.96

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Solution

The fourth proportional to 75,940.56, 104,847.24 and 67,968.96 is: 93,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,940.56 : 104,847.24 = 67,968.96 : x
  2. Step 2: Convert to fraction form
    75,940.56/104,847.24 = 67,968.96/x
  3. Step 3: Cross multiply
    75,940.56x = 104,847.24 × 67,968.96
  4. Step 4: Simplify right side
    75,940.56x = 7,126,357,861.67
  5. Step 5: Solve for x
    x = 7,126,357,861.67/75,940.56
  6. Step 6: Final answer
    x = 93,841.26

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1.5x scale

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.