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Finding the Fourth Proportional to 73,093.35, 100,867.74 and 40,828.42

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Solution

The fourth proportional to 73,093.35, 100,867.74 and 40,828.42 is: 56,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,093.35 : 100,867.74 = 40,828.42 : x
  2. Step 2: Convert to fraction form
    73,093.35/100,867.74 = 40,828.42/x
  3. Step 3: Cross multiply
    73,093.35x = 100,867.74 × 40,828.42
  4. Step 4: Simplify right side
    73,093.35x = 4,118,269,744.69
  5. Step 5: Solve for x
    x = 4,118,269,744.69/73,093.35
  6. Step 6: Final answer
    x = 56,342.60

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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.