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Finding the Fourth Proportional to 187,481.79, 281,244.61 and 65,865.00

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Solution

The fourth proportional to 187,481.79, 281,244.61 and 65,865.00 is: 98,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,481.79 : 281,244.61 = 65,865.00 : x
  2. Step 2: Convert to fraction form
    187,481.79/281,244.61 = 65,865.00/x
  3. Step 3: Cross multiply
    187,481.79x = 281,244.61 × 65,865.00
  4. Step 4: Simplify right side
    187,481.79x = 18,524,175,422.16
  5. Step 5: Solve for x
    x = 18,524,175,422.16/187,481.79
  6. Step 6: Final answer
    x = 98,805.20

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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.