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Finding the Fourth Proportional to 168,185.40, 252,279.12 and 49,857.84

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Solution

The fourth proportional to 168,185.40, 252,279.12 and 49,857.84 is: 74,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,185.40 : 252,279.12 = 49,857.84 : x
  2. Step 2: Convert to fraction form
    168,185.40/252,279.12 = 49,857.84/x
  3. Step 3: Cross multiply
    168,185.40x = 252,279.12 × 49,857.84
  4. Step 4: Simplify right side
    168,185.40x = 12,578,092,000.30
  5. Step 5: Solve for x
    x = 12,578,092,000.30/168,185.40
  6. Step 6: Final answer
    x = 74,787.06

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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.