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Finding the Fourth Proportional to 234,493.76, 351,741.72 and 74,586.80

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Solution

The fourth proportional to 234,493.76, 351,741.72 and 74,586.80 is: 111,880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,493.76 : 351,741.72 = 74,586.80 : x
  2. Step 2: Convert to fraction form
    234,493.76/351,741.72 = 74,586.80/x
  3. Step 3: Cross multiply
    234,493.76x = 351,741.72 × 74,586.80
  4. Step 4: Simplify right side
    234,493.76x = 26,235,289,321.30
  5. Step 5: Solve for x
    x = 26,235,289,321.30/234,493.76
  6. Step 6: Final answer
    x = 111,880.54

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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.