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Finding the Fourth Proportional to 275,369.12, 413,043.27 and 75,684.32

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Solution

The fourth proportional to 275,369.12, 413,043.27 and 75,684.32 is: 113,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,369.12 : 413,043.27 = 75,684.32 : x
  2. Step 2: Convert to fraction form
    275,369.12/413,043.27 = 75,684.32/x
  3. Step 3: Cross multiply
    275,369.12x = 413,043.27 × 75,684.32
  4. Step 4: Simplify right side
    275,369.12x = 31,260,901,182.36
  5. Step 5: Solve for x
    x = 31,260,901,182.36/275,369.12
  6. Step 6: Final answer
    x = 113,523.63

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1.5x scale

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.