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Finding the Fourth Proportional to 262,616.54, 393,891.93 and 73,091.12

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Solution

The fourth proportional to 262,616.54, 393,891.93 and 73,091.12 is: 109,627.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,616.54 : 393,891.93 = 73,091.12 : x
  2. Step 2: Convert to fraction form
    262,616.54/393,891.93 = 73,091.12/x
  3. Step 3: Cross multiply
    262,616.54x = 393,891.93 × 73,091.12
  4. Step 4: Simplify right side
    262,616.54x = 28,790,000,353.20
  5. Step 5: Solve for x
    x = 28,790,000,353.20/262,616.54
  6. Step 6: Final answer
    x = 109,627.52

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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.