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Finding the Fourth Proportional to 178,049.70, 267,074.55 and 53,390.70

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Solution

The fourth proportional to 178,049.70, 267,074.55 and 53,390.70 is: 80,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,049.70 : 267,074.55 = 53,390.70 : x
  2. Step 2: Convert to fraction form
    178,049.70/267,074.55 = 53,390.70/x
  3. Step 3: Cross multiply
    178,049.70x = 267,074.55 × 53,390.70
  4. Step 4: Simplify right side
    178,049.70x = 14,259,297,176.69
  5. Step 5: Solve for x
    x = 14,259,297,176.69/178,049.70
  6. Step 6: Final answer
    x = 80,086.05

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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.