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Finding the Fourth Proportional to 73,741.44, 110,628.54 and 21,146.88

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Solution

The fourth proportional to 73,741.44, 110,628.54 and 21,146.88 is: 31,725.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,741.44 : 110,628.54 = 21,146.88 : x
  2. Step 2: Convert to fraction form
    73,741.44/110,628.54 = 21,146.88/x
  3. Step 3: Cross multiply
    73,741.44x = 110,628.54 × 21,146.88
  4. Step 4: Simplify right side
    73,741.44x = 2,339,448,459.96
  5. Step 5: Solve for x
    x = 2,339,448,459.96/73,741.44
  6. Step 6: Final answer
    x = 31,725.02

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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.