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Finding the Fourth Proportional to 79,147.96, 109,224.16 and 43,337.96

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Solution

The fourth proportional to 79,147.96, 109,224.16 and 43,337.96 is: 59,806.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,147.96 : 109,224.16 = 43,337.96 : x
  2. Step 2: Convert to fraction form
    79,147.96/109,224.16 = 43,337.96/x
  3. Step 3: Cross multiply
    79,147.96x = 109,224.16 × 43,337.96
  4. Step 4: Simplify right side
    79,147.96x = 4,733,552,277.11
  5. Step 5: Solve for x
    x = 4,733,552,277.11/79,147.96
  6. Step 6: Final answer
    x = 59,806.37

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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.