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Finding the Fourth Proportional to 72,093.01, 99,473.92 and 40,257.01

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Solution

The fourth proportional to 72,093.01, 99,473.92 and 40,257.01 is: 55,546.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,093.01 : 99,473.92 = 40,257.01 : x
  2. Step 2: Convert to fraction form
    72,093.01/99,473.92 = 40,257.01/x
  3. Step 3: Cross multiply
    72,093.01x = 99,473.92 × 40,257.01
  4. Step 4: Simplify right side
    72,093.01x = 4,004,522,592.18
  5. Step 5: Solve for x
    x = 4,004,522,592.18/72,093.01
  6. Step 6: Final answer
    x = 55,546.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.