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Finding the Fourth Proportional to 75,392.10, 112,940.32 and 43,735.68

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Solution

The fourth proportional to 75,392.10, 112,940.32 and 43,735.68 is: 65,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,392.10 : 112,940.32 = 43,735.68 : x
  2. Step 2: Convert to fraction form
    75,392.10/112,940.32 = 43,735.68/x
  3. Step 3: Cross multiply
    75,392.10x = 112,940.32 × 43,735.68
  4. Step 4: Simplify right side
    75,392.10x = 4,939,521,694.62
  5. Step 5: Solve for x
    x = 4,939,521,694.62/75,392.10
  6. Step 6: Final answer
    x = 65,517.76

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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.