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Finding the Fourth Proportional to 79,723.44, 109,996.46 and 55,497.26

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Solution

The fourth proportional to 79,723.44, 109,996.46 and 55,497.26 is: 76,570.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,723.44 : 109,996.46 = 55,497.26 : x
  2. Step 2: Convert to fraction form
    79,723.44/109,996.46 = 55,497.26/x
  3. Step 3: Cross multiply
    79,723.44x = 109,996.46 × 55,497.26
  4. Step 4: Simplify right side
    79,723.44x = 6,104,502,139.70
  5. Step 5: Solve for x
    x = 6,104,502,139.70/79,723.44
  6. Step 6: Final answer
    x = 76,570.98

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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.