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Finding the Fourth Proportional to 172,849.68, 259,284.78 and 48,190.68

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Solution

The fourth proportional to 172,849.68, 259,284.78 and 48,190.68 is: 72,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,849.68 : 259,284.78 = 48,190.68 : x
  2. Step 2: Convert to fraction form
    172,849.68/259,284.78 = 48,190.68/x
  3. Step 3: Cross multiply
    172,849.68x = 259,284.78 × 48,190.68
  4. Step 4: Simplify right side
    172,849.68x = 12,495,109,861.85
  5. Step 5: Solve for x
    x = 12,495,109,861.85/172,849.68
  6. Step 6: Final answer
    x = 72,288.88

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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.