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Finding the Fourth Proportional to 104,611.10, 156,743.85 and 89,059.10

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Solution

The fourth proportional to 104,611.10, 156,743.85 and 89,059.10 is: 133,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,611.10 : 156,743.85 = 89,059.10 : x
  2. Step 2: Convert to fraction form
    104,611.10/156,743.85 = 89,059.10/x
  3. Step 3: Cross multiply
    104,611.10x = 156,743.85 × 89,059.10
  4. Step 4: Simplify right side
    104,611.10x = 13,959,466,211.54
  5. Step 5: Solve for x
    x = 13,959,466,211.54/104,611.10
  6. Step 6: Final answer
    x = 133,441.54

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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.