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Finding the Fourth Proportional to 124,576.70, 186,923.37 and 54,446.90

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Solution

The fourth proportional to 124,576.70, 186,923.37 and 54,446.90 is: 81,695.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,576.70 : 186,923.37 = 54,446.90 : x
  2. Step 2: Convert to fraction form
    124,576.70/186,923.37 = 54,446.90/x
  3. Step 3: Cross multiply
    124,576.70x = 186,923.37 × 54,446.90
  4. Step 4: Simplify right side
    124,576.70x = 10,177,398,034.05
  5. Step 5: Solve for x
    x = 10,177,398,034.05/124,576.70
  6. Step 6: Final answer
    x = 81,695.84

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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.