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Finding the Fourth Proportional to 79,576.83, 109,811.95 and 43,759.95

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Solution

The fourth proportional to 79,576.83, 109,811.95 and 43,759.95 is: 60,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,576.83 : 109,811.95 = 43,759.95 : x
  2. Step 2: Convert to fraction form
    79,576.83/109,811.95 = 43,759.95/x
  3. Step 3: Cross multiply
    79,576.83x = 109,811.95 × 43,759.95
  4. Step 4: Simplify right side
    79,576.83x = 4,805,365,166.36
  5. Step 5: Solve for x
    x = 4,805,365,166.36/79,576.83
  6. Step 6: Final answer
    x = 60,386.49

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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.