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Finding the Fourth Proportional to 87,650.88, 120,933.72 and 59,010.90

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Solution

The fourth proportional to 87,650.88, 120,933.72 and 59,010.90 is: 81,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,650.88 : 120,933.72 = 59,010.90 : x
  2. Step 2: Convert to fraction form
    87,650.88/120,933.72 = 59,010.90/x
  3. Step 3: Cross multiply
    87,650.88x = 120,933.72 × 59,010.90
  4. Step 4: Simplify right side
    87,650.88x = 7,136,407,657.55
  5. Step 5: Solve for x
    x = 7,136,407,657.55/87,650.88
  6. Step 6: Final answer
    x = 81,418.55

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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.