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Finding the Fourth Proportional to 75,791.46, 104,514.78 and 50,288.88

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Solution

The fourth proportional to 75,791.46, 104,514.78 and 50,288.88 is: 69,347.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,791.46 : 104,514.78 = 50,288.88 : x
  2. Step 2: Convert to fraction form
    75,791.46/104,514.78 = 50,288.88/x
  3. Step 3: Cross multiply
    75,791.46x = 104,514.78 × 50,288.88
  4. Step 4: Simplify right side
    75,791.46x = 5,255,931,229.65
  5. Step 5: Solve for x
    x = 5,255,931,229.65/75,791.46
  6. Step 6: Final answer
    x = 69,347.28

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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.