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Finding the Fourth Proportional to 87,296.67, 120,483.90 and 51,495.48

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Solution

The fourth proportional to 87,296.67, 120,483.90 and 51,495.48 is: 71,072.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,296.67 : 120,483.90 = 51,495.48 : x
  2. Step 2: Convert to fraction form
    87,296.67/120,483.90 = 51,495.48/x
  3. Step 3: Cross multiply
    87,296.67x = 120,483.90 × 51,495.48
  4. Step 4: Simplify right side
    87,296.67x = 6,204,376,262.77
  5. Step 5: Solve for x
    x = 6,204,376,262.77/87,296.67
  6. Step 6: Final answer
    x = 71,072.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.