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Finding the Fourth Proportional to 79,610.56, 109,862.77 and 43,802.80

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Solution

The fourth proportional to 79,610.56, 109,862.77 and 43,802.80 is: 60,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,610.56 : 109,862.77 = 43,802.80 : x
  2. Step 2: Convert to fraction form
    79,610.56/109,862.77 = 43,802.80/x
  3. Step 3: Cross multiply
    79,610.56x = 109,862.77 × 43,802.80
  4. Step 4: Simplify right side
    79,610.56x = 4,812,296,941.76
  5. Step 5: Solve for x
    x = 4,812,296,941.76/79,610.56
  6. Step 6: Final answer
    x = 60,447.97

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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.