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Finding the Fourth Proportional to 178,305.70, 267,470.70 and 56,716.60

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Solution

The fourth proportional to 178,305.70, 267,470.70 and 56,716.60 is: 85,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,305.70 : 267,470.70 = 56,716.60 : x
  2. Step 2: Convert to fraction form
    178,305.70/267,470.70 = 56,716.60/x
  3. Step 3: Cross multiply
    178,305.70x = 267,470.70 × 56,716.60
  4. Step 4: Simplify right side
    178,305.70x = 15,170,028,703.62
  5. Step 5: Solve for x
    x = 15,170,028,703.62/178,305.70
  6. Step 6: Final answer
    x = 85,078.76

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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.