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Finding the Fourth Proportional to 96,909.60, 133,655.22 and 68,324.52

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Solution

The fourth proportional to 96,909.60, 133,655.22 and 68,324.52 is: 94,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,909.60 : 133,655.22 = 68,324.52 : x
  2. Step 2: Convert to fraction form
    96,909.60/133,655.22 = 68,324.52/x
  3. Step 3: Cross multiply
    96,909.60x = 133,655.22 × 68,324.52
  4. Step 4: Simplify right side
    96,909.60x = 9,131,928,751.99
  5. Step 5: Solve for x
    x = 9,131,928,751.99/96,909.60
  6. Step 6: Final answer
    x = 94,231.42

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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.