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Finding the Fourth Proportional to 89,812.49, 123,942.02 and 49,527.68

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Solution

The fourth proportional to 89,812.49, 123,942.02 and 49,527.68 is: 68,348.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,812.49 : 123,942.02 = 49,527.68 : x
  2. Step 2: Convert to fraction form
    89,812.49/123,942.02 = 49,527.68/x
  3. Step 3: Cross multiply
    89,812.49x = 123,942.02 × 49,527.68
  4. Step 4: Simplify right side
    89,812.49x = 6,138,559,837.77
  5. Step 5: Solve for x
    x = 6,138,559,837.77/89,812.49
  6. Step 6: Final answer
    x = 68,348.62

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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.