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Finding the Fourth Proportional to 330,167.52, 455,623.44 and 194,174.88

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Solution

The fourth proportional to 330,167.52, 455,623.44 and 194,174.88 is: 267,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,167.52 : 455,623.44 = 194,174.88 : x
  2. Step 2: Convert to fraction form
    330,167.52/455,623.44 = 194,174.88/x
  3. Step 3: Cross multiply
    330,167.52x = 455,623.44 × 194,174.88
  4. Step 4: Simplify right side
    330,167.52x = 88,470,626,787.19
  5. Step 5: Solve for x
    x = 88,470,626,787.19/330,167.52
  6. Step 6: Final answer
    x = 267,956.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.