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Finding the Fourth Proportional to 235,729.56, 353,606 and 67,274.72

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Solution

The fourth proportional to 235,729.56, 353,606 and 67,274.72 is: 100,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,729.56 : 353,606 = 67,274.72 : x
  2. Step 2: Convert to fraction form
    235,729.56/353,606 = 67,274.72/x
  3. Step 3: Cross multiply
    235,729.56x = 353,606 × 67,274.72
  4. Step 4: Simplify right side
    235,729.56x = 23,788,744,640.32
  5. Step 5: Solve for x
    x = 23,788,744,640.32/235,729.56
  6. Step 6: Final answer
    x = 100,915.41

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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.