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Finding the Fourth Proportional to 121,673.52, 182,359.56 and 68,923.08

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Solution

The fourth proportional to 121,673.52, 182,359.56 and 68,923.08 is: 103,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,673.52 : 182,359.56 = 68,923.08 : x
  2. Step 2: Convert to fraction form
    121,673.52/182,359.56 = 68,923.08/x
  3. Step 3: Cross multiply
    121,673.52x = 182,359.56 × 68,923.08
  4. Step 4: Simplify right side
    121,673.52x = 12,568,782,542.64
  5. Step 5: Solve for x
    x = 12,568,782,542.64/121,673.52
  6. Step 6: Final answer
    x = 103,299.24

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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.