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Finding the Fourth Proportional to 79,495.44, 109,701.50 and 43,685.48

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Solution

The fourth proportional to 79,495.44, 109,701.50 and 43,685.48 is: 60,284.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,495.44 : 109,701.50 = 43,685.48 : x
  2. Step 2: Convert to fraction form
    79,495.44/109,701.50 = 43,685.48/x
  3. Step 3: Cross multiply
    79,495.44x = 109,701.50 × 43,685.48
  4. Step 4: Simplify right side
    79,495.44x = 4,792,361,917.29
  5. Step 5: Solve for x
    x = 4,792,361,917.29/79,495.44
  6. Step 6: Final answer
    x = 60,284.74

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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.