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Finding the Fourth Proportional to 218,676.85, 328,059.77 and 92,317.14

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Solution

The fourth proportional to 218,676.85, 328,059.77 and 92,317.14 is: 138,494.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,676.85 : 328,059.77 = 92,317.14 : x
  2. Step 2: Convert to fraction form
    218,676.85/328,059.77 = 92,317.14/x
  3. Step 3: Cross multiply
    218,676.85x = 328,059.77 × 92,317.14
  4. Step 4: Simplify right side
    218,676.85x = 30,285,539,253.87
  5. Step 5: Solve for x
    x = 30,285,539,253.87/218,676.85
  6. Step 6: Final answer
    x = 138,494.49

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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.