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Finding the Fourth Proportional to 73,109.43, 100,881.86 and 40,836.33

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Solution

The fourth proportional to 73,109.43, 100,881.86 and 40,836.33 is: 56,349.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,109.43 : 100,881.86 = 40,836.33 : x
  2. Step 2: Convert to fraction form
    73,109.43/100,881.86 = 40,836.33/x
  3. Step 3: Cross multiply
    73,109.43x = 100,881.86 × 40,836.33
  4. Step 4: Simplify right side
    73,109.43x = 4,119,644,721.79
  5. Step 5: Solve for x
    x = 4,119,644,721.79/73,109.43
  6. Step 6: Final answer
    x = 56,349.02

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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.