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Finding the Fourth Proportional to 80,540.70, 111,160.65 and 46,544.49

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Solution

The fourth proportional to 80,540.70, 111,160.65 and 46,544.49 is: 64,239.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,540.70 : 111,160.65 = 46,544.49 : x
  2. Step 2: Convert to fraction form
    80,540.70/111,160.65 = 46,544.49/x
  3. Step 3: Cross multiply
    80,540.70x = 111,160.65 × 46,544.49
  4. Step 4: Simplify right side
    80,540.70x = 5,173,915,762.32
  5. Step 5: Solve for x
    x = 5,173,915,762.32/80,540.70
  6. Step 6: Final answer
    x = 64,239.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.