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Finding the Fourth Proportional to 79,293.52, 118,940.28 and 31,923.10

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Solution

The fourth proportional to 79,293.52, 118,940.28 and 31,923.10 is: 47,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,293.52 : 118,940.28 = 31,923.10 : x
  2. Step 2: Convert to fraction form
    79,293.52/118,940.28 = 31,923.10/x
  3. Step 3: Cross multiply
    79,293.52x = 118,940.28 × 31,923.10
  4. Step 4: Simplify right side
    79,293.52x = 3,796,942,452.47
  5. Step 5: Solve for x
    x = 3,796,942,452.47/79,293.52
  6. Step 6: Final answer
    x = 47,884.65

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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.