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Finding the Fourth Proportional to 173,207.91, 259,819.17 and 54,876.63

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Solution

The fourth proportional to 173,207.91, 259,819.17 and 54,876.63 is: 82,317.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,207.91 : 259,819.17 = 54,876.63 : x
  2. Step 2: Convert to fraction form
    173,207.91/259,819.17 = 54,876.63/x
  3. Step 3: Cross multiply
    173,207.91x = 259,819.17 × 54,876.63
  4. Step 4: Simplify right side
    173,207.91x = 14,258,000,459.00
  5. Step 5: Solve for x
    x = 14,258,000,459.00/173,207.91
  6. Step 6: Final answer
    x = 82,317.26

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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.