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Finding the Fourth Proportional to 73,240.54, 100,999.16 and 55,134.61

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Solution

The fourth proportional to 73,240.54, 100,999.16 and 55,134.61 is: 76,030.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,240.54 : 100,999.16 = 55,134.61 : x
  2. Step 2: Convert to fraction form
    73,240.54/100,999.16 = 55,134.61/x
  3. Step 3: Cross multiply
    73,240.54x = 100,999.16 × 55,134.61
  4. Step 4: Simplify right side
    73,240.54x = 5,568,549,296.93
  5. Step 5: Solve for x
    x = 5,568,549,296.93/73,240.54
  6. Step 6: Final answer
    x = 76,030.97

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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.