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Finding the Fourth Proportional to 73,105.88, 100,890.78 and 41,263.16

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Solution

The fourth proportional to 73,105.88, 100,890.78 and 41,263.16 is: 56,945.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,105.88 : 100,890.78 = 41,263.16 : x
  2. Step 2: Convert to fraction form
    73,105.88/100,890.78 = 41,263.16/x
  3. Step 3: Cross multiply
    73,105.88x = 100,890.78 × 41,263.16
  4. Step 4: Simplify right side
    73,105.88x = 4,163,072,397.66
  5. Step 5: Solve for x
    x = 4,163,072,397.66/73,105.88
  6. Step 6: Final answer
    x = 56,945.79

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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.