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Finding the Fourth Proportional to 66,321.74, 99,481.56 and 24,201.54

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Solution

The fourth proportional to 66,321.74, 99,481.56 and 24,201.54 is: 36,301.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,321.74 : 99,481.56 = 24,201.54 : x
  2. Step 2: Convert to fraction form
    66,321.74/99,481.56 = 24,201.54/x
  3. Step 3: Cross multiply
    66,321.74x = 99,481.56 × 24,201.54
  4. Step 4: Simplify right side
    66,321.74x = 2,407,606,953.60
  5. Step 5: Solve for x
    x = 2,407,606,953.60/66,321.74
  6. Step 6: Final answer
    x = 36,301.93

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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.