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Finding the Fourth Proportional to 275,592.29, 413,388.26 and 86,068.88

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Solution

The fourth proportional to 275,592.29, 413,388.26 and 86,068.88 is: 129,103.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,592.29 : 413,388.26 = 86,068.88 : x
  2. Step 2: Convert to fraction form
    275,592.29/413,388.26 = 86,068.88/x
  3. Step 3: Cross multiply
    275,592.29x = 413,388.26 × 86,068.88
  4. Step 4: Simplify right side
    275,592.29x = 35,579,862,046.06
  5. Step 5: Solve for x
    x = 35,579,862,046.06/275,592.29
  6. Step 6: Final answer
    x = 129,103.26

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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.