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Finding the Fourth Proportional to 79,378.44, 119,005.44 and 41,335.80

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Solution

The fourth proportional to 79,378.44, 119,005.44 and 41,335.80 is: 61,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,378.44 : 119,005.44 = 41,335.80 : x
  2. Step 2: Convert to fraction form
    79,378.44/119,005.44 = 41,335.80/x
  3. Step 3: Cross multiply
    79,378.44x = 119,005.44 × 41,335.80
  4. Step 4: Simplify right side
    79,378.44x = 4,919,185,066.75
  5. Step 5: Solve for x
    x = 4,919,185,066.75/79,378.44
  6. Step 6: Final answer
    x = 61,971.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.