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Finding the Fourth Proportional to 172,956.50, 259,442.70 and 53,004.86

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Solution

The fourth proportional to 172,956.50, 259,442.70 and 53,004.86 is: 79,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,956.50 : 259,442.70 = 53,004.86 : x
  2. Step 2: Convert to fraction form
    172,956.50/259,442.70 = 53,004.86/x
  3. Step 3: Cross multiply
    172,956.50x = 259,442.70 × 53,004.86
  4. Step 4: Simplify right side
    172,956.50x = 13,751,723,991.52
  5. Step 5: Solve for x
    x = 13,751,723,991.52/172,956.50
  6. Step 6: Final answer
    x = 79,509.73

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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.