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Finding the Fourth Proportional to 251,142.34, 376,523.43 and 124,834.18

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Solution

The fourth proportional to 251,142.34, 376,523.43 and 124,834.18 is: 187,156.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,142.34 : 376,523.43 = 124,834.18 : x
  2. Step 2: Convert to fraction form
    251,142.34/376,523.43 = 124,834.18/x
  3. Step 3: Cross multiply
    251,142.34x = 376,523.43 × 124,834.18
  4. Step 4: Simplify right side
    251,142.34x = 47,002,993,634.84
  5. Step 5: Solve for x
    x = 47,002,993,634.84/251,142.34
  6. Step 6: Final answer
    x = 187,156.79

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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.