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Finding the Fourth Proportional to 119,754.67, 179,631.99 and 67,168.25

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Solution

The fourth proportional to 119,754.67, 179,631.99 and 67,168.25 is: 100,752.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,754.67 : 179,631.99 = 67,168.25 : x
  2. Step 2: Convert to fraction form
    119,754.67/179,631.99 = 67,168.25/x
  3. Step 3: Cross multiply
    119,754.67x = 179,631.99 × 67,168.25
  4. Step 4: Simplify right side
    119,754.67x = 12,065,566,861.40
  5. Step 5: Solve for x
    x = 12,065,566,861.40/119,754.67
  6. Step 6: Final answer
    x = 100,752.37

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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.