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Finding the Fourth Proportional to 171,992.54, 257,979.70 and 53,650.32

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Solution

The fourth proportional to 171,992.54, 257,979.70 and 53,650.32 is: 80,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,992.54 : 257,979.70 = 53,650.32 : x
  2. Step 2: Convert to fraction form
    171,992.54/257,979.70 = 53,650.32/x
  3. Step 3: Cross multiply
    171,992.54x = 257,979.70 × 53,650.32
  4. Step 4: Simplify right side
    171,992.54x = 13,840,693,458.50
  5. Step 5: Solve for x
    x = 13,840,693,458.50/171,992.54
  6. Step 6: Final answer
    x = 80,472.64

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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.