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Finding the Fourth Proportional to 178,253.88, 267,378.27 and 43,318.94

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Solution

The fourth proportional to 178,253.88, 267,378.27 and 43,318.94 is: 64,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,253.88 : 267,378.27 = 43,318.94 : x
  2. Step 2: Convert to fraction form
    178,253.88/267,378.27 = 43,318.94/x
  3. Step 3: Cross multiply
    178,253.88x = 267,378.27 × 43,318.94
  4. Step 4: Simplify right side
    178,253.88x = 11,582,543,235.43
  5. Step 5: Solve for x
    x = 11,582,543,235.43/178,253.88
  6. Step 6: Final answer
    x = 64,977.79

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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.