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Finding the Fourth Proportional to 168,787.62, 253,086.66 and 56,408.64

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Solution

The fourth proportional to 168,787.62, 253,086.66 and 56,408.64 is: 84,581.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,787.62 : 253,086.66 = 56,408.64 : x
  2. Step 2: Convert to fraction form
    168,787.62/253,086.66 = 56,408.64/x
  3. Step 3: Cross multiply
    168,787.62x = 253,086.66 × 56,408.64
  4. Step 4: Simplify right side
    168,787.62x = 14,276,274,292.74
  5. Step 5: Solve for x
    x = 14,276,274,292.74/168,787.62
  6. Step 6: Final answer
    x = 84,581.29

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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.