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Finding the Fourth Proportional to 179,519.76, 247,676.72 and 111,512.57

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Solution

The fourth proportional to 179,519.76, 247,676.72 and 111,512.57 is: 153,849.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,519.76 : 247,676.72 = 111,512.57 : x
  2. Step 2: Convert to fraction form
    179,519.76/247,676.72 = 111,512.57/x
  3. Step 3: Cross multiply
    179,519.76x = 247,676.72 × 111,512.57
  4. Step 4: Simplify right side
    179,519.76x = 27,619,065,780.42
  5. Step 5: Solve for x
    x = 27,619,065,780.42/179,519.76
  6. Step 6: Final answer
    x = 153,849.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.