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Finding the Fourth Proportional to 54,139.40, 81,093.90 and 44,923.40

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Solution

The fourth proportional to 54,139.40, 81,093.90 and 44,923.40 is: 67,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,139.40 : 81,093.90 = 44,923.40 : x
  2. Step 2: Convert to fraction form
    54,139.40/81,093.90 = 44,923.40/x
  3. Step 3: Cross multiply
    54,139.40x = 81,093.90 × 44,923.40
  4. Step 4: Simplify right side
    54,139.40x = 3,643,013,707.26
  5. Step 5: Solve for x
    x = 3,643,013,707.26/54,139.40
  6. Step 6: Final answer
    x = 67,289.51

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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.