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Finding the Fourth Proportional to 73,018.93, 100,766.09 and 39,484.93

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Solution

The fourth proportional to 73,018.93, 100,766.09 and 39,484.93 is: 54,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,018.93 : 100,766.09 = 39,484.93 : x
  2. Step 2: Convert to fraction form
    73,018.93/100,766.09 = 39,484.93/x
  3. Step 3: Cross multiply
    73,018.93x = 100,766.09 × 39,484.93
  4. Step 4: Simplify right side
    73,018.93x = 3,978,741,308.77
  5. Step 5: Solve for x
    x = 3,978,741,308.77/73,018.93
  6. Step 6: Final answer
    x = 54,489.18

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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.