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Finding the Fourth Proportional to 168,578.40, 252,872.82 and 56,268.48

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Solution

The fourth proportional to 168,578.40, 252,872.82 and 56,268.48 is: 84,404.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,578.40 : 252,872.82 = 56,268.48 : x
  2. Step 2: Convert to fraction form
    168,578.40/252,872.82 = 56,268.48/x
  3. Step 3: Cross multiply
    168,578.40x = 252,872.82 × 56,268.48
  4. Step 4: Simplify right side
    168,578.40x = 14,228,769,214.71
  5. Step 5: Solve for x
    x = 14,228,769,214.71/168,578.40
  6. Step 6: Final answer
    x = 84,404.46

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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.