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Finding the Fourth Proportional to 87,703.60, 131,447.40 and 59,623.60

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Solution

The fourth proportional to 87,703.60, 131,447.40 and 59,623.60 is: 89,361.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,703.60 : 131,447.40 = 59,623.60 : x
  2. Step 2: Convert to fraction form
    87,703.60/131,447.40 = 59,623.60/x
  3. Step 3: Cross multiply
    87,703.60x = 131,447.40 × 59,623.60
  4. Step 4: Simplify right side
    87,703.60x = 7,837,367,198.64
  5. Step 5: Solve for x
    x = 7,837,367,198.64/87,703.60
  6. Step 6: Final answer
    x = 89,361.98

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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.