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Finding the Fourth Proportional to 104,851.20, 156,969.60 and 92,563.20

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Solution

The fourth proportional to 104,851.20, 156,969.60 and 92,563.20 is: 138,573.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,851.20 : 156,969.60 = 92,563.20 : x
  2. Step 2: Convert to fraction form
    104,851.20/156,969.60 = 92,563.20/x
  3. Step 3: Cross multiply
    104,851.20x = 156,969.60 × 92,563.20
  4. Step 4: Simplify right side
    104,851.20x = 14,529,608,478.72
  5. Step 5: Solve for x
    x = 14,529,608,478.72/104,851.20
  6. Step 6: Final answer
    x = 138,573.60

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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.