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Finding the Fourth Proportional to 81,467.93, 122,211.13 and 73,096.51

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Solution

The fourth proportional to 81,467.93, 122,211.13 and 73,096.51 is: 109,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,467.93 : 122,211.13 = 73,096.51 : x
  2. Step 2: Convert to fraction form
    81,467.93/122,211.13 = 73,096.51/x
  3. Step 3: Cross multiply
    81,467.93x = 122,211.13 × 73,096.51
  4. Step 4: Simplify right side
    81,467.93x = 8,933,207,086.16
  5. Step 5: Solve for x
    x = 8,933,207,086.16/81,467.93
  6. Step 6: Final answer
    x = 109,653.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.