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Finding the Fourth Proportional to 70,994.44, 97,971.78 and 39,164.68

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Solution

The fourth proportional to 70,994.44, 97,971.78 and 39,164.68 is: 54,046.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,994.44 : 97,971.78 = 39,164.68 : x
  2. Step 2: Convert to fraction form
    70,994.44/97,971.78 = 39,164.68/x
  3. Step 3: Cross multiply
    70,994.44x = 97,971.78 × 39,164.68
  4. Step 4: Simplify right side
    70,994.44x = 3,837,033,412.73
  5. Step 5: Solve for x
    x = 3,837,033,412.73/70,994.44
  6. Step 6: Final answer
    x = 54,046.96

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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.