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Finding the Fourth Proportional to 207,466.50, 311,240.64 and 74,311.02

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Solution

The fourth proportional to 207,466.50, 311,240.64 and 74,311.02 is: 111,481.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,466.50 : 311,240.64 = 74,311.02 : x
  2. Step 2: Convert to fraction form
    207,466.50/311,240.64 = 74,311.02/x
  3. Step 3: Cross multiply
    207,466.50x = 311,240.64 × 74,311.02
  4. Step 4: Simplify right side
    207,466.50x = 23,128,609,423.85
  5. Step 5: Solve for x
    x = 23,128,609,423.85/207,466.50
  6. Step 6: Final answer
    x = 111,481.18

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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.