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Finding the Fourth Proportional to 79,357, 109,512.60 and 43,549.26

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Solution

The fourth proportional to 79,357, 109,512.60 and 43,549.26 is: 60,097.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,357 : 109,512.60 = 43,549.26 : x
  2. Step 2: Convert to fraction form
    79,357/109,512.60 = 43,549.26/x
  3. Step 3: Cross multiply
    79,357x = 109,512.60 × 43,549.26
  4. Step 4: Simplify right side
    79,357x = 4,769,192,690.68
  5. Step 5: Solve for x
    x = 4,769,192,690.68/79,357
  6. Step 6: Final answer
    x = 60,097.95

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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.