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Finding the Fourth Proportional to 235,586.28, 325,243.14 and 155,247.24

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Solution

The fourth proportional to 235,586.28, 325,243.14 and 155,247.24 is: 214,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,586.28 : 325,243.14 = 155,247.24 : x
  2. Step 2: Convert to fraction form
    235,586.28/325,243.14 = 155,247.24/x
  3. Step 3: Cross multiply
    235,586.28x = 325,243.14 × 155,247.24
  4. Step 4: Simplify right side
    235,586.28x = 50,493,099,813.93
  5. Step 5: Solve for x
    x = 50,493,099,813.93/235,586.28
  6. Step 6: Final answer
    x = 214,329.54

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1.5x scale

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.