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Finding the Fourth Proportional to 187,876.62, 281,810.82 and 45,722.52

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Solution

The fourth proportional to 187,876.62, 281,810.82 and 45,722.52 is: 68,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,876.62 : 281,810.82 = 45,722.52 : x
  2. Step 2: Convert to fraction form
    187,876.62/281,810.82 = 45,722.52/x
  3. Step 3: Cross multiply
    187,876.62x = 281,810.82 × 45,722.52
  4. Step 4: Simplify right side
    187,876.62x = 12,885,100,853.67
  5. Step 5: Solve for x
    x = 12,885,100,853.67/187,876.62
  6. Step 6: Final answer
    x = 68,582.78

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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.