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Finding the Fourth Proportional to 178,478.75, 267,729.06 and 53,819.75

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Solution

The fourth proportional to 178,478.75, 267,729.06 and 53,819.75 is: 80,732.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,478.75 : 267,729.06 = 53,819.75 : x
  2. Step 2: Convert to fraction form
    178,478.75/267,729.06 = 53,819.75/x
  3. Step 3: Cross multiply
    178,478.75x = 267,729.06 × 53,819.75
  4. Step 4: Simplify right side
    178,478.75x = 14,409,111,076.94
  5. Step 5: Solve for x
    x = 14,409,111,076.94/178,478.75
  6. Step 6: Final answer
    x = 80,732.92

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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.