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Finding the Fourth Proportional to 187,579.26, 258,859.26 and 102,696.30

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Solution

The fourth proportional to 187,579.26, 258,859.26 and 102,696.30 is: 141,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,579.26 : 258,859.26 = 102,696.30 : x
  2. Step 2: Convert to fraction form
    187,579.26/258,859.26 = 102,696.30/x
  3. Step 3: Cross multiply
    187,579.26x = 258,859.26 × 102,696.30
  4. Step 4: Simplify right side
    187,579.26x = 26,583,888,222.74
  5. Step 5: Solve for x
    x = 26,583,888,222.74/187,579.26
  6. Step 6: Final answer
    x = 141,720.83

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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.