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Finding the Fourth Proportional to 253,008.53, 379,575.09 and 178,274.64

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Solution

The fourth proportional to 253,008.53, 379,575.09 and 178,274.64 is: 267,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,008.53 : 379,575.09 = 178,274.64 : x
  2. Step 2: Convert to fraction form
    253,008.53/379,575.09 = 178,274.64/x
  3. Step 3: Cross multiply
    253,008.53x = 379,575.09 × 178,274.64
  4. Step 4: Simplify right side
    253,008.53x = 67,668,612,522.72
  5. Step 5: Solve for x
    x = 67,668,612,522.72/253,008.53
  6. Step 6: Final answer
    x = 267,455.85

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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.