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Finding the Fourth Proportional to 168,218.98, 252,285.42 and 49,862.65

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Solution

The fourth proportional to 168,218.98, 252,285.42 and 49,862.65 is: 74,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,218.98 : 252,285.42 = 49,862.65 : x
  2. Step 2: Convert to fraction form
    168,218.98/252,285.42 = 49,862.65/x
  3. Step 3: Cross multiply
    168,218.98x = 252,285.42 × 49,862.65
  4. Step 4: Simplify right side
    168,218.98x = 12,579,619,597.56
  5. Step 5: Solve for x
    x = 12,579,619,597.56/168,218.98
  6. Step 6: Final answer
    x = 74,781.21

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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.