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Finding the Fourth Proportional to 251,191.72, 376,466.82 and 117,777.88

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Solution

The fourth proportional to 251,191.72, 376,466.82 and 117,777.88 is: 176,516.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,191.72 : 376,466.82 = 117,777.88 : x
  2. Step 2: Convert to fraction form
    251,191.72/376,466.82 = 117,777.88/x
  3. Step 3: Cross multiply
    251,191.72x = 376,466.82 × 117,777.88
  4. Step 4: Simplify right side
    251,191.72x = 44,339,463,949.94
  5. Step 5: Solve for x
    x = 44,339,463,949.94/251,191.72
  6. Step 6: Final answer
    x = 176,516.42

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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.