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Finding the Fourth Proportional to 169,105.67, 253,664.66 and 56,789.56

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Solution

The fourth proportional to 169,105.67, 253,664.66 and 56,789.56 is: 85,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,105.67 : 253,664.66 = 56,789.56 : x
  2. Step 2: Convert to fraction form
    169,105.67/253,664.66 = 56,789.56/x
  3. Step 3: Cross multiply
    169,105.67x = 253,664.66 × 56,789.56
  4. Step 4: Simplify right side
    169,105.67x = 14,405,503,461.14
  5. Step 5: Solve for x
    x = 14,405,503,461.14/169,105.67
  6. Step 6: Final answer
    x = 85,186.40

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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.