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Finding the Fourth Proportional to 79,533.96, 109,756.92 and 43,724.58

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Solution

The fourth proportional to 79,533.96, 109,756.92 and 43,724.58 is: 60,339.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,533.96 : 109,756.92 = 43,724.58 : x
  2. Step 2: Convert to fraction form
    79,533.96/109,756.92 = 43,724.58/x
  3. Step 3: Cross multiply
    79,533.96x = 109,756.92 × 43,724.58
  4. Step 4: Simplify right side
    79,533.96x = 4,799,075,229.09
  5. Step 5: Solve for x
    x = 4,799,075,229.09/79,533.96
  6. Step 6: Final answer
    x = 60,339.95

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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.