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Finding the Fourth Proportional to 168,406.46, 252,649.90 and 56,087.62

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Solution

The fourth proportional to 168,406.46, 252,649.90 and 56,087.62 is: 84,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,406.46 : 252,649.90 = 56,087.62 : x
  2. Step 2: Convert to fraction form
    168,406.46/252,649.90 = 56,087.62/x
  3. Step 3: Cross multiply
    168,406.46x = 252,649.90 × 56,087.62
  4. Step 4: Simplify right side
    168,406.46x = 14,170,531,584.24
  5. Step 5: Solve for x
    x = 14,170,531,584.24/168,406.46
  6. Step 6: Final answer
    x = 84,144.82

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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.