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Finding the Fourth Proportional to 178,524.63, 267,785.79 and 45,403.74

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Solution

The fourth proportional to 178,524.63, 267,785.79 and 45,403.74 is: 68,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,524.63 : 267,785.79 = 45,403.74 : x
  2. Step 2: Convert to fraction form
    178,524.63/267,785.79 = 45,403.74/x
  3. Step 3: Cross multiply
    178,524.63x = 267,785.79 × 45,403.74
  4. Step 4: Simplify right side
    178,524.63x = 12,158,476,384.85
  5. Step 5: Solve for x
    x = 12,158,476,384.85/178,524.63
  6. Step 6: Final answer
    x = 68,105.32

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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.