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Finding the Fourth Proportional to 54,251.70, 76,107.90 and 54,251.70

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Solution

The fourth proportional to 54,251.70, 76,107.90 and 54,251.70 is: 76,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,251.70 : 76,107.90 = 54,251.70 : x
  2. Step 2: Convert to fraction form
    54,251.70/76,107.90 = 54,251.70/x
  3. Step 3: Cross multiply
    54,251.70x = 76,107.90 × 54,251.70
  4. Step 4: Simplify right side
    54,251.70x = 4,128,982,958.43
  5. Step 5: Solve for x
    x = 4,128,982,958.43/54,251.70
  6. Step 6: Final answer
    x = 76,107.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.