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Finding the Fourth Proportional to 208,887.88, 313,343.98 and 59,115.64

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Solution

The fourth proportional to 208,887.88, 313,343.98 and 59,115.64 is: 88,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,887.88 : 313,343.98 = 59,115.64 : x
  2. Step 2: Convert to fraction form
    208,887.88/313,343.98 = 59,115.64/x
  3. Step 3: Cross multiply
    208,887.88x = 313,343.98 × 59,115.64
  4. Step 4: Simplify right side
    208,887.88x = 18,523,529,622.27
  5. Step 5: Solve for x
    x = 18,523,529,622.27/208,887.88
  6. Step 6: Final answer
    x = 88,676.90

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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.