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Finding the Fourth Proportional to 74,665.29, 111,930.69 and 27,247.29

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Solution

The fourth proportional to 74,665.29, 111,930.69 and 27,247.29 is: 40,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,665.29 : 111,930.69 = 27,247.29 : x
  2. Step 2: Convert to fraction form
    74,665.29/111,930.69 = 27,247.29/x
  3. Step 3: Cross multiply
    74,665.29x = 111,930.69 × 27,247.29
  4. Step 4: Simplify right side
    74,665.29x = 3,049,807,970.33
  5. Step 5: Solve for x
    x = 3,049,807,970.33/74,665.29
  6. Step 6: Final answer
    x = 40,846.40

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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.