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Finding the Fourth Proportional to 355,969.23, 533,939.97 and 131,232.45

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Solution

The fourth proportional to 355,969.23, 533,939.97 and 131,232.45 is: 196,843.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,969.23 : 533,939.97 = 131,232.45 : x
  2. Step 2: Convert to fraction form
    355,969.23/533,939.97 = 131,232.45/x
  3. Step 3: Cross multiply
    355,969.23x = 533,939.97 × 131,232.45
  4. Step 4: Simplify right side
    355,969.23x = 70,070,250,416.03
  5. Step 5: Solve for x
    x = 70,070,250,416.03/355,969.23
  6. Step 6: Final answer
    x = 196,843.56

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1.5x scale

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.