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Finding the Fourth Proportional to 168,670.56, 252,919.88 and 56,310.40

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Solution

The fourth proportional to 168,670.56, 252,919.88 and 56,310.40 is: 84,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,670.56 : 252,919.88 = 56,310.40 : x
  2. Step 2: Convert to fraction form
    168,670.56/252,919.88 = 56,310.40/x
  3. Step 3: Cross multiply
    168,670.56x = 252,919.88 × 56,310.40
  4. Step 4: Simplify right side
    168,670.56x = 14,242,019,610.75
  5. Step 5: Solve for x
    x = 14,242,019,610.75/168,670.56
  6. Step 6: Final answer
    x = 84,436.90

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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.