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Finding the Fourth Proportional to 56,953.80, 78,025.41 and 54,824.11

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Solution

The fourth proportional to 56,953.80, 78,025.41 and 54,824.11 is: 75,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,953.80 : 78,025.41 = 54,824.11 : x
  2. Step 2: Convert to fraction form
    56,953.80/78,025.41 = 54,824.11/x
  3. Step 3: Cross multiply
    56,953.80x = 78,025.41 × 54,824.11
  4. Step 4: Simplify right side
    56,953.80x = 4,277,673,465.57
  5. Step 5: Solve for x
    x = 4,277,673,465.57/56,953.80
  6. Step 6: Final answer
    x = 75,107.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.