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Finding the Fourth Proportional to 79,171.77, 109,253.16 and 43,361.94

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Solution

The fourth proportional to 79,171.77, 109,253.16 and 43,361.94 is: 59,837.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,171.77 : 109,253.16 = 43,361.94 : x
  2. Step 2: Convert to fraction form
    79,171.77/109,253.16 = 43,361.94/x
  3. Step 3: Cross multiply
    79,171.77x = 109,253.16 × 43,361.94
  4. Step 4: Simplify right side
    79,171.77x = 4,737,428,968.73
  5. Step 5: Solve for x
    x = 4,737,428,968.73/79,171.77
  6. Step 6: Final answer
    x = 59,837.35

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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.