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Finding the Fourth Proportional to 79,593.49, 109,836.68 and 43,783.48

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Solution

The fourth proportional to 79,593.49, 109,836.68 and 43,783.48 is: 60,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,593.49 : 109,836.68 = 43,783.48 : x
  2. Step 2: Convert to fraction form
    79,593.49/109,836.68 = 43,783.48/x
  3. Step 3: Cross multiply
    79,593.49x = 109,836.68 × 43,783.48
  4. Step 4: Simplify right side
    79,593.49x = 4,809,031,532.86
  5. Step 5: Solve for x
    x = 4,809,031,532.86/79,593.49
  6. Step 6: Final answer
    x = 60,419.91

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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.