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Finding the Fourth Proportional to 173,165.10, 259,747.65 and 54,872.70

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Solution

The fourth proportional to 173,165.10, 259,747.65 and 54,872.70 is: 82,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,165.10 : 259,747.65 = 54,872.70 : x
  2. Step 2: Convert to fraction form
    173,165.10/259,747.65 = 54,872.70/x
  3. Step 3: Cross multiply
    173,165.10x = 259,747.65 × 54,872.70
  4. Step 4: Simplify right side
    173,165.10x = 14,253,054,874.16
  5. Step 5: Solve for x
    x = 14,253,054,874.16/173,165.10
  6. Step 6: Final answer
    x = 82,309.05

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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.