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Finding the Fourth Proportional to 251,096.41, 376,663.85 and 71,178.82

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Solution

The fourth proportional to 251,096.41, 376,663.85 and 71,178.82 is: 106,773.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,096.41 : 376,663.85 = 71,178.82 : x
  2. Step 2: Convert to fraction form
    251,096.41/376,663.85 = 71,178.82/x
  3. Step 3: Cross multiply
    251,096.41x = 376,663.85 × 71,178.82
  4. Step 4: Simplify right side
    251,096.41x = 26,810,487,749.40
  5. Step 5: Solve for x
    x = 26,810,487,749.40/251,096.41
  6. Step 6: Final answer
    x = 106,773.68

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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.