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Finding the Fourth Proportional to 79,661.89, 119,464.99 and 23,487.09

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Solution

The fourth proportional to 79,661.89, 119,464.99 and 23,487.09 is: 35,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,661.89 : 119,464.99 = 23,487.09 : x
  2. Step 2: Convert to fraction form
    79,661.89/119,464.99 = 23,487.09/x
  3. Step 3: Cross multiply
    79,661.89x = 119,464.99 × 23,487.09
  4. Step 4: Simplify right side
    79,661.89x = 2,805,884,971.98
  5. Step 5: Solve for x
    x = 2,805,884,971.98/79,661.89
  6. Step 6: Final answer
    x = 35,222.43

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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.