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Finding the Fourth Proportional to 187,899.72, 281,878.74 and 63,231

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Solution

The fourth proportional to 187,899.72, 281,878.74 and 63,231 is: 94,856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,899.72 : 281,878.74 = 63,231 : x
  2. Step 2: Convert to fraction form
    187,899.72/281,878.74 = 63,231/x
  3. Step 3: Cross multiply
    187,899.72x = 281,878.74 × 63,231
  4. Step 4: Simplify right side
    187,899.72x = 17,823,474,608.94
  5. Step 5: Solve for x
    x = 17,823,474,608.94/187,899.72
  6. Step 6: Final answer
    x = 94,856.31

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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.