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Finding the Fourth Proportional to 74,144.69, 111,216.17 and 29,770.67

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Solution

The fourth proportional to 74,144.69, 111,216.17 and 29,770.67 is: 44,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,144.69 : 111,216.17 = 29,770.67 : x
  2. Step 2: Convert to fraction form
    74,144.69/111,216.17 = 29,770.67/x
  3. Step 3: Cross multiply
    74,144.69x = 111,216.17 × 29,770.67
  4. Step 4: Simplify right side
    74,144.69x = 3,310,979,190.80
  5. Step 5: Solve for x
    x = 3,310,979,190.80/74,144.69
  6. Step 6: Final answer
    x = 44,655.65

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1.5x scale

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.