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Finding the Fourth Proportional to 381,175.86, 571,775.70 and 141,349.44

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Solution

The fourth proportional to 381,175.86, 571,775.70 and 141,349.44 is: 212,028.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,175.86 : 571,775.70 = 141,349.44 : x
  2. Step 2: Convert to fraction form
    381,175.86/571,775.70 = 141,349.44/x
  3. Step 3: Cross multiply
    381,175.86x = 571,775.70 × 141,349.44
  4. Step 4: Simplify right side
    381,175.86x = 80,820,175,000.61
  5. Step 5: Solve for x
    x = 80,820,175,000.61/381,175.86
  6. Step 6: Final answer
    x = 212,028.58

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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.