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Finding the Fourth Proportional to 98,260.94, 135,583.53 and 55,234.75

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Solution

The fourth proportional to 98,260.94, 135,583.53 and 55,234.75 is: 76,214.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,260.94 : 135,583.53 = 55,234.75 : x
  2. Step 2: Convert to fraction form
    98,260.94/135,583.53 = 55,234.75/x
  3. Step 3: Cross multiply
    98,260.94x = 135,583.53 × 55,234.75
  4. Step 4: Simplify right side
    98,260.94x = 7,488,922,107.49
  5. Step 5: Solve for x
    x = 7,488,922,107.49/98,260.94
  6. Step 6: Final answer
    x = 76,214.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.