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Finding the Fourth Proportional to 178,138.53, 267,183.09 and 45,010.59

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Solution

The fourth proportional to 178,138.53, 267,183.09 and 45,010.59 is: 67,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,138.53 : 267,183.09 = 45,010.59 : x
  2. Step 2: Convert to fraction form
    178,138.53/267,183.09 = 45,010.59/x
  3. Step 3: Cross multiply
    178,138.53x = 267,183.09 × 45,010.59
  4. Step 4: Simplify right side
    178,138.53x = 12,026,068,518.92
  5. Step 5: Solve for x
    x = 12,026,068,518.92/178,138.53
  6. Step 6: Final answer
    x = 67,509.64

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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.