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Finding the Fourth Proportional to 171,824.20, 257,760.60 and 53,483.20

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Solution

The fourth proportional to 171,824.20, 257,760.60 and 53,483.20 is: 80,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,824.20 : 257,760.60 = 53,483.20 : x
  2. Step 2: Convert to fraction form
    171,824.20/257,760.60 = 53,483.20/x
  3. Step 3: Cross multiply
    171,824.20x = 257,760.60 × 53,483.20
  4. Step 4: Simplify right side
    171,824.20x = 13,785,861,721.92
  5. Step 5: Solve for x
    x = 13,785,861,721.92/171,824.20
  6. Step 6: Final answer
    x = 80,232.36

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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.