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Finding the Fourth Proportional to 70,976.44, 97,236.65 and 68,317.48

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Solution

The fourth proportional to 70,976.44, 97,236.65 and 68,317.48 is: 93,593.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,976.44 : 97,236.65 = 68,317.48 : x
  2. Step 2: Convert to fraction form
    70,976.44/97,236.65 = 68,317.48/x
  3. Step 3: Cross multiply
    70,976.44x = 97,236.65 × 68,317.48
  4. Step 4: Simplify right side
    70,976.44x = 6,642,962,891.64
  5. Step 5: Solve for x
    x = 6,642,962,891.64/70,976.44
  6. Step 6: Final answer
    x = 93,593.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.