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Finding the Fourth Proportional to 178,331.91, 267,512.45 and 73,151.79

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Solution

The fourth proportional to 178,331.91, 267,512.45 and 73,151.79 is: 109,733.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,331.91 : 267,512.45 = 73,151.79 : x
  2. Step 2: Convert to fraction form
    178,331.91/267,512.45 = 73,151.79/x
  3. Step 3: Cross multiply
    178,331.91x = 267,512.45 × 73,151.79
  4. Step 4: Simplify right side
    178,331.91x = 19,569,014,199.03
  5. Step 5: Solve for x
    x = 19,569,014,199.03/178,331.91
  6. Step 6: Final answer
    x = 109,733.67

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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.