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Finding the Fourth Proportional to 89,495.44, 123,493.48 and 71,583.92

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Solution

The fourth proportional to 89,495.44, 123,493.48 and 71,583.92 is: 98,777.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,495.44 : 123,493.48 = 71,583.92 : x
  2. Step 2: Convert to fraction form
    89,495.44/123,493.48 = 71,583.92/x
  3. Step 3: Cross multiply
    89,495.44x = 123,493.48 × 71,583.92
  4. Step 4: Simplify right side
    89,495.44x = 8,840,147,392.84
  5. Step 5: Solve for x
    x = 8,840,147,392.84/89,495.44
  6. Step 6: Final answer
    x = 98,777.63

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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.