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Finding the Fourth Proportional to 251,082.51, 376,635.15 and 71,180.82

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Solution

The fourth proportional to 251,082.51, 376,635.15 and 71,180.82 is: 106,774.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,082.51 : 376,635.15 = 71,180.82 : x
  2. Step 2: Convert to fraction form
    251,082.51/376,635.15 = 71,180.82/x
  3. Step 3: Cross multiply
    251,082.51x = 376,635.15 × 71,180.82
  4. Step 4: Simplify right side
    251,082.51x = 26,809,198,817.82
  5. Step 5: Solve for x
    x = 26,809,198,817.82/251,082.51
  6. Step 6: Final answer
    x = 106,774.46

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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.