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Finding the Fourth Proportional to 79,579.98, 109,816.96 and 43,767.67

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Solution

The fourth proportional to 79,579.98, 109,816.96 and 43,767.67 is: 60,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,579.98 : 109,816.96 = 43,767.67 : x
  2. Step 2: Convert to fraction form
    79,579.98/109,816.96 = 43,767.67/x
  3. Step 3: Cross multiply
    79,579.98x = 109,816.96 × 43,767.67
  4. Step 4: Simplify right side
    79,579.98x = 4,806,432,465.68
  5. Step 5: Solve for x
    x = 4,806,432,465.68/79,579.98
  6. Step 6: Final answer
    x = 60,397.51

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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.