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Finding the Fourth Proportional to 251,872.10, 377,808.15 and 194,791.40

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Solution

The fourth proportional to 251,872.10, 377,808.15 and 194,791.40 is: 292,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,872.10 : 377,808.15 = 194,791.40 : x
  2. Step 2: Convert to fraction form
    251,872.10/377,808.15 = 194,791.40/x
  3. Step 3: Cross multiply
    251,872.10x = 377,808.15 × 194,791.40
  4. Step 4: Simplify right side
    251,872.10x = 73,593,778,469.91
  5. Step 5: Solve for x
    x = 73,593,778,469.91/251,872.10
  6. Step 6: Final answer
    x = 292,187.10

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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.