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Finding the Fourth Proportional to 187,508.52, 258,672.26 and 115,862.76

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Solution

The fourth proportional to 187,508.52, 258,672.26 and 115,862.76 is: 159,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,508.52 : 258,672.26 = 115,862.76 : x
  2. Step 2: Convert to fraction form
    187,508.52/258,672.26 = 115,862.76/x
  3. Step 3: Cross multiply
    187,508.52x = 258,672.26 × 115,862.76
  4. Step 4: Simplify right side
    187,508.52x = 29,970,481,979.04
  5. Step 5: Solve for x
    x = 29,970,481,979.04/187,508.52
  6. Step 6: Final answer
    x = 159,835.31

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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.