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Finding the Fourth Proportional to 89,274.63, 123,198.92 and 48,990.92

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Solution

The fourth proportional to 89,274.63, 123,198.92 and 48,990.92 is: 67,607.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,274.63 : 123,198.92 = 48,990.92 : x
  2. Step 2: Convert to fraction form
    89,274.63/123,198.92 = 48,990.92/x
  3. Step 3: Cross multiply
    89,274.63x = 123,198.92 × 48,990.92
  4. Step 4: Simplify right side
    89,274.63x = 6,035,628,496.85
  5. Step 5: Solve for x
    x = 6,035,628,496.85/89,274.63
  6. Step 6: Final answer
    x = 67,607.43

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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.