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Finding the Fourth Proportional to 79,580.88, 109,822.17 and 43,282.32

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Solution

The fourth proportional to 79,580.88, 109,822.17 and 43,282.32 is: 59,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,580.88 : 109,822.17 = 43,282.32 : x
  2. Step 2: Convert to fraction form
    79,580.88/109,822.17 = 43,282.32/x
  3. Step 3: Cross multiply
    79,580.88x = 109,822.17 × 43,282.32
  4. Step 4: Simplify right side
    79,580.88x = 4,753,358,305.03
  5. Step 5: Solve for x
    x = 4,753,358,305.03/79,580.88
  6. Step 6: Final answer
    x = 59,729.90

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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.