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Finding the Fourth Proportional to 178,049.60, 267,090.60 and 72,846.80

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Solution

The fourth proportional to 178,049.60, 267,090.60 and 72,846.80 is: 109,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,049.60 : 267,090.60 = 72,846.80 : x
  2. Step 2: Convert to fraction form
    178,049.60/267,090.60 = 72,846.80/x
  3. Step 3: Cross multiply
    178,049.60x = 267,090.60 × 72,846.80
  4. Step 4: Simplify right side
    178,049.60x = 19,456,695,520.08
  5. Step 5: Solve for x
    x = 19,456,695,520.08/178,049.60
  6. Step 6: Final answer
    x = 109,276.83

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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.