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Finding the Fourth Proportional to 79,846.89, 119,781.27 and 27,242.25

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Solution

The fourth proportional to 79,846.89, 119,781.27 and 27,242.25 is: 40,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,846.89 : 119,781.27 = 27,242.25 : x
  2. Step 2: Convert to fraction form
    79,846.89/119,781.27 = 27,242.25/x
  3. Step 3: Cross multiply
    79,846.89x = 119,781.27 × 27,242.25
  4. Step 4: Simplify right side
    79,846.89x = 3,263,111,302.66
  5. Step 5: Solve for x
    x = 3,263,111,302.66/79,846.89
  6. Step 6: Final answer
    x = 40,867.11

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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.