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Finding the Fourth Proportional to 79,076.52, 109,125.90 and 43,266.42

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Solution

The fourth proportional to 79,076.52, 109,125.90 and 43,266.42 is: 59,707.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,076.52 : 109,125.90 = 43,266.42 : x
  2. Step 2: Convert to fraction form
    79,076.52/109,125.90 = 43,266.42/x
  3. Step 3: Cross multiply
    79,076.52x = 109,125.90 × 43,266.42
  4. Step 4: Simplify right side
    79,076.52x = 4,721,487,022.28
  5. Step 5: Solve for x
    x = 4,721,487,022.28/79,076.52
  6. Step 6: Final answer
    x = 59,707.83

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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.