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Finding the Fourth Proportional to 187,198.72, 258,330.43 and 102,316.39

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Solution

The fourth proportional to 187,198.72, 258,330.43 and 102,316.39 is: 141,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,198.72 : 258,330.43 = 102,316.39 : x
  2. Step 2: Convert to fraction form
    187,198.72/258,330.43 = 102,316.39/x
  3. Step 3: Cross multiply
    187,198.72x = 258,330.43 × 102,316.39
  4. Step 4: Simplify right side
    187,198.72x = 26,431,436,506.82
  5. Step 5: Solve for x
    x = 26,431,436,506.82/187,198.72
  6. Step 6: Final answer
    x = 141,194.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.