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Finding the Fourth Proportional to 87,703.68, 131,525.72 and 28,524.66

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Solution

The fourth proportional to 87,703.68, 131,525.72 and 28,524.66 is: 42,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,703.68 : 131,525.72 = 28,524.66 : x
  2. Step 2: Convert to fraction form
    87,703.68/131,525.72 = 28,524.66/x
  3. Step 3: Cross multiply
    87,703.68x = 131,525.72 × 28,524.66
  4. Step 4: Simplify right side
    87,703.68x = 3,751,726,301.63
  5. Step 5: Solve for x
    x = 3,751,726,301.63/87,703.68
  6. Step 6: Final answer
    x = 42,777.30

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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.