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Finding the Fourth Proportional to 171,375.48, 257,074.11 and 53,036.88

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Solution

The fourth proportional to 171,375.48, 257,074.11 and 53,036.88 is: 79,558.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,375.48 : 257,074.11 = 53,036.88 : x
  2. Step 2: Convert to fraction form
    171,375.48/257,074.11 = 53,036.88/x
  3. Step 3: Cross multiply
    171,375.48x = 257,074.11 × 53,036.88
  4. Step 4: Simplify right side
    171,375.48x = 13,634,408,723.18
  5. Step 5: Solve for x
    x = 13,634,408,723.18/171,375.48
  6. Step 6: Final answer
    x = 79,558.69

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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.