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Finding the Fourth Proportional to 75,393.32, 113,619.48 and 67,906.27

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Solution

The fourth proportional to 75,393.32, 113,619.48 and 67,906.27 is: 102,336.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,393.32 : 113,619.48 = 67,906.27 : x
  2. Step 2: Convert to fraction form
    75,393.32/113,619.48 = 67,906.27/x
  3. Step 3: Cross multiply
    75,393.32x = 113,619.48 × 67,906.27
  4. Step 4: Simplify right side
    75,393.32x = 7,715,474,802.09
  5. Step 5: Solve for x
    x = 7,715,474,802.09/75,393.32
  6. Step 6: Final answer
    x = 102,336.32

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.