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Finding the Fourth Proportional to 79,625.03, 109,879.74 and 43,814.12

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Solution

The fourth proportional to 79,625.03, 109,879.74 and 43,814.12 is: 60,461.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,625.03 : 109,879.74 = 43,814.12 : x
  2. Step 2: Convert to fraction form
    79,625.03/109,879.74 = 43,814.12/x
  3. Step 3: Cross multiply
    79,625.03x = 109,879.74 × 43,814.12
  4. Step 4: Simplify right side
    79,625.03x = 4,814,283,564.53
  5. Step 5: Solve for x
    x = 4,814,283,564.53/79,625.03
  6. Step 6: Final answer
    x = 60,461.94

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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.