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Finding the Fourth Proportional to 235,432.44, 353,370.60 and 85,817.34

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Solution

The fourth proportional to 235,432.44, 353,370.60 and 85,817.34 is: 128,806.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,432.44 : 353,370.60 = 85,817.34 : x
  2. Step 2: Convert to fraction form
    235,432.44/353,370.60 = 85,817.34/x
  3. Step 3: Cross multiply
    235,432.44x = 353,370.60 × 85,817.34
  4. Step 4: Simplify right side
    235,432.44x = 30,325,324,926.20
  5. Step 5: Solve for x
    x = 30,325,324,926.20/235,432.44
  6. Step 6: Final answer
    x = 128,806.91

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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.