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Finding the Fourth Proportional to 86,299, 119,031.27 and 57,604.19

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Solution

The fourth proportional to 86,299, 119,031.27 and 57,604.19 is: 79,452.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,299 : 119,031.27 = 57,604.19 : x
  2. Step 2: Convert to fraction form
    86,299/119,031.27 = 57,604.19/x
  3. Step 3: Cross multiply
    86,299x = 119,031.27 × 57,604.19
  4. Step 4: Simplify right side
    86,299x = 6,856,699,893.02
  5. Step 5: Solve for x
    x = 6,856,699,893.02/86,299
  6. Step 6: Final answer
    x = 79,452.83

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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.