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Finding the Fourth Proportional to 187,370.59, 258,498.79 and 119,375.40

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Solution

The fourth proportional to 187,370.59, 258,498.79 and 119,375.40 is: 164,691.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,370.59 : 258,498.79 = 119,375.40 : x
  2. Step 2: Convert to fraction form
    187,370.59/258,498.79 = 119,375.40/x
  3. Step 3: Cross multiply
    187,370.59x = 258,498.79 × 119,375.40
  4. Step 4: Simplify right side
    187,370.59x = 30,858,396,455.77
  5. Step 5: Solve for x
    x = 30,858,396,455.77/187,370.59
  6. Step 6: Final answer
    x = 164,691.78

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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.