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Finding the Fourth Proportional to 98,771.20, 148,059.60 and 88,273.60

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Solution

The fourth proportional to 98,771.20, 148,059.60 and 88,273.60 is: 132,323.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,771.20 : 148,059.60 = 88,273.60 : x
  2. Step 2: Convert to fraction form
    98,771.20/148,059.60 = 88,273.60/x
  3. Step 3: Cross multiply
    98,771.20x = 148,059.60 × 88,273.60
  4. Step 4: Simplify right side
    98,771.20x = 13,069,753,906.56
  5. Step 5: Solve for x
    x = 13,069,753,906.56/98,771.20
  6. Step 6: Final answer
    x = 132,323.53

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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.