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Finding the Fourth Proportional to 70,016.66, 96,619.16 and 39,797.80

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Solution

The fourth proportional to 70,016.66, 96,619.16 and 39,797.80 is: 54,918.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,016.66 : 96,619.16 = 39,797.80 : x
  2. Step 2: Convert to fraction form
    70,016.66/96,619.16 = 39,797.80/x
  3. Step 3: Cross multiply
    70,016.66x = 96,619.16 × 39,797.80
  4. Step 4: Simplify right side
    70,016.66x = 3,845,230,005.85
  5. Step 5: Solve for x
    x = 3,845,230,005.85/70,016.66
  6. Step 6: Final answer
    x = 54,918.79

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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.