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Finding the Fourth Proportional to 187,346.70, 281,034.72 and 54,228.96

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Solution

The fourth proportional to 187,346.70, 281,034.72 and 54,228.96 is: 81,347.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,346.70 : 281,034.72 = 54,228.96 : x
  2. Step 2: Convert to fraction form
    187,346.70/281,034.72 = 54,228.96/x
  3. Step 3: Cross multiply
    187,346.70x = 281,034.72 × 54,228.96
  4. Step 4: Simplify right side
    187,346.70x = 15,240,220,589.49
  5. Step 5: Solve for x
    x = 15,240,220,589.49/187,346.70
  6. Step 6: Final answer
    x = 81,347.69

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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.