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Finding the Fourth Proportional to 87,536.64, 120,800.46 and 51,739.56

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Solution

The fourth proportional to 87,536.64, 120,800.46 and 51,739.56 is: 71,400.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,536.64 : 120,800.46 = 51,739.56 : x
  2. Step 2: Convert to fraction form
    87,536.64/120,800.46 = 51,739.56/x
  3. Step 3: Cross multiply
    87,536.64x = 120,800.46 × 51,739.56
  4. Step 4: Simplify right side
    87,536.64x = 6,250,162,648.20
  5. Step 5: Solve for x
    x = 6,250,162,648.20/87,536.64
  6. Step 6: Final answer
    x = 71,400.53

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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.