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Finding the Fourth Proportional to 355,183.50, 532,867.60 and 105,865.50

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Solution

The fourth proportional to 355,183.50, 532,867.60 and 105,865.50 is: 158,825.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,183.50 : 532,867.60 = 105,865.50 : x
  2. Step 2: Convert to fraction form
    355,183.50/532,867.60 = 105,865.50/x
  3. Step 3: Cross multiply
    355,183.50x = 532,867.60 × 105,865.50
  4. Step 4: Simplify right side
    355,183.50x = 56,412,294,907.80
  5. Step 5: Solve for x
    x = 56,412,294,907.80/355,183.50
  6. Step 6: Final answer
    x = 158,825.78

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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.