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Finding the Fourth Proportional to 251,676.48, 377,339.76 and 111,358.56

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Solution

The fourth proportional to 251,676.48, 377,339.76 and 111,358.56 is: 166,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,676.48 : 377,339.76 = 111,358.56 : x
  2. Step 2: Convert to fraction form
    251,676.48/377,339.76 = 111,358.56/x
  3. Step 3: Cross multiply
    251,676.48x = 377,339.76 × 111,358.56
  4. Step 4: Simplify right side
    251,676.48x = 42,020,012,304.35
  5. Step 5: Solve for x
    x = 42,020,012,304.35/251,676.48
  6. Step 6: Final answer
    x = 166,960.43

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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.