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Finding the Fourth Proportional to 73,969.92, 110,908.65 and 31,253.39

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Solution

The fourth proportional to 73,969.92, 110,908.65 and 31,253.39 is: 46,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,969.92 : 110,908.65 = 31,253.39 : x
  2. Step 2: Convert to fraction form
    73,969.92/110,908.65 = 31,253.39/x
  3. Step 3: Cross multiply
    73,969.92x = 110,908.65 × 31,253.39
  4. Step 4: Simplify right side
    73,969.92x = 3,466,270,738.28
  5. Step 5: Solve for x
    x = 3,466,270,738.28/73,969.92
  6. Step 6: Final answer
    x = 46,860.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.