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Finding the Fourth Proportional to 251,165.55, 376,767.77 and 71,247.94

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Solution

The fourth proportional to 251,165.55, 376,767.77 and 71,247.94 is: 106,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,165.55 : 376,767.77 = 71,247.94 : x
  2. Step 2: Convert to fraction form
    251,165.55/376,767.77 = 71,247.94/x
  3. Step 3: Cross multiply
    251,165.55x = 376,767.77 × 71,247.94
  4. Step 4: Simplify right side
    251,165.55x = 26,843,927,470.89
  5. Step 5: Solve for x
    x = 26,843,927,470.89/251,165.55
  6. Step 6: Final answer
    x = 106,877.43

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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.