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Finding the Fourth Proportional to 98,884.73, 148,380.39 and 65,620.46

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Solution

The fourth proportional to 98,884.73, 148,380.39 and 65,620.46 is: 98,466.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,884.73 : 148,380.39 = 65,620.46 : x
  2. Step 2: Convert to fraction form
    98,884.73/148,380.39 = 65,620.46/x
  3. Step 3: Cross multiply
    98,884.73x = 148,380.39 × 65,620.46
  4. Step 4: Simplify right side
    98,884.73x = 9,736,789,817.73
  5. Step 5: Solve for x
    x = 9,736,789,817.73/98,884.73
  6. Step 6: Final answer
    x = 98,466.06

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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.