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Finding the Fourth Proportional to 179,670.80, 269,538.60 and 74,500.40

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Solution

The fourth proportional to 179,670.80, 269,538.60 and 74,500.40 is: 111,764.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,670.80 : 269,538.60 = 74,500.40 : x
  2. Step 2: Convert to fraction form
    179,670.80/269,538.60 = 74,500.40/x
  3. Step 3: Cross multiply
    179,670.80x = 269,538.60 × 74,500.40
  4. Step 4: Simplify right side
    179,670.80x = 20,080,733,515.44
  5. Step 5: Solve for x
    x = 20,080,733,515.44/179,670.80
  6. Step 6: Final answer
    x = 111,764.03

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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.