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Finding the Fourth Proportional to 79,265.82, 109,384.46 and 43,454.61

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Solution

The fourth proportional to 79,265.82, 109,384.46 and 43,454.61 is: 59,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,265.82 : 109,384.46 = 43,454.61 : x
  2. Step 2: Convert to fraction form
    79,265.82/109,384.46 = 43,454.61/x
  3. Step 3: Cross multiply
    79,265.82x = 109,384.46 × 43,454.61
  4. Step 4: Simplify right side
    79,265.82x = 4,753,259,049.36
  5. Step 5: Solve for x
    x = 4,753,259,049.36/79,265.82
  6. Step 6: Final answer
    x = 59,966.06

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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.