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Finding the Fourth Proportional to 262,676.88, 393,976.14 and 73,117.44

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Solution

The fourth proportional to 262,676.88, 393,976.14 and 73,117.44 is: 109,665.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,676.88 : 393,976.14 = 73,117.44 : x
  2. Step 2: Convert to fraction form
    262,676.88/393,976.14 = 73,117.44/x
  3. Step 3: Cross multiply
    262,676.88x = 393,976.14 × 73,117.44
  4. Step 4: Simplify right side
    262,676.88x = 28,806,526,777.88
  5. Step 5: Solve for x
    x = 28,806,526,777.88/262,676.88
  6. Step 6: Final answer
    x = 109,665.25

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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.