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Finding the Fourth Proportional to 235,918.67, 353,879.12 and 100,963

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Solution

The fourth proportional to 235,918.67, 353,879.12 and 100,963 is: 151,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,918.67 : 353,879.12 = 100,963 : x
  2. Step 2: Convert to fraction form
    235,918.67/353,879.12 = 100,963/x
  3. Step 3: Cross multiply
    235,918.67x = 353,879.12 × 100,963
  4. Step 4: Simplify right side
    235,918.67x = 35,728,697,592.56
  5. Step 5: Solve for x
    x = 35,728,697,592.56/235,918.67
  6. Step 6: Final answer
    x = 151,444.98

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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.