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Finding the Fourth Proportional to 73,148.94, 100,945.49 and 39,614.94

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Solution

The fourth proportional to 73,148.94, 100,945.49 and 39,614.94 is: 54,668.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,148.94 : 100,945.49 = 39,614.94 : x
  2. Step 2: Convert to fraction form
    73,148.94/100,945.49 = 39,614.94/x
  3. Step 3: Cross multiply
    73,148.94x = 100,945.49 × 39,614.94
  4. Step 4: Simplify right side
    73,148.94x = 3,998,949,331.55
  5. Step 5: Solve for x
    x = 3,998,949,331.55/73,148.94
  6. Step 6: Final answer
    x = 54,668.59

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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.