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Finding the Fourth Proportional to 168,980.72, 253,527.24 and 56,672

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Solution

The fourth proportional to 168,980.72, 253,527.24 and 56,672 is: 85,026.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,980.72 : 253,527.24 = 56,672 : x
  2. Step 2: Convert to fraction form
    168,980.72/253,527.24 = 56,672/x
  3. Step 3: Cross multiply
    168,980.72x = 253,527.24 × 56,672
  4. Step 4: Simplify right side
    168,980.72x = 14,367,895,745.28
  5. Step 5: Solve for x
    x = 14,367,895,745.28/168,980.72
  6. Step 6: Final answer
    x = 85,026.83

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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.