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Finding the Fourth Proportional to 74,065.44, 102,258 and 66,093.96

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Solution

The fourth proportional to 74,065.44, 102,258 and 66,093.96 is: 91,252.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,065.44 : 102,258 = 66,093.96 : x
  2. Step 2: Convert to fraction form
    74,065.44/102,258 = 66,093.96/x
  3. Step 3: Cross multiply
    74,065.44x = 102,258 × 66,093.96
  4. Step 4: Simplify right side
    74,065.44x = 6,758,636,161.68
  5. Step 5: Solve for x
    x = 6,758,636,161.68/74,065.44
  6. Step 6: Final answer
    x = 91,252.22

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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.