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Finding the Fourth Proportional to 235,836.90, 325,404.36 and 140,324.94

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Solution

The fourth proportional to 235,836.90, 325,404.36 and 140,324.94 is: 193,618.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,836.90 : 325,404.36 = 140,324.94 : x
  2. Step 2: Convert to fraction form
    235,836.90/325,404.36 = 140,324.94/x
  3. Step 3: Cross multiply
    235,836.90x = 325,404.36 × 140,324.94
  4. Step 4: Simplify right side
    235,836.90x = 45,662,347,292.74
  5. Step 5: Solve for x
    x = 45,662,347,292.74/235,836.90
  6. Step 6: Final answer
    x = 193,618.33

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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.