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Finding the Fourth Proportional to 90,992.62, 125,523.03 and 59,149.90

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Solution

The fourth proportional to 90,992.62, 125,523.03 and 59,149.90 is: 81,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,992.62 : 125,523.03 = 59,149.90 : x
  2. Step 2: Convert to fraction form
    90,992.62/125,523.03 = 59,149.90/x
  3. Step 3: Cross multiply
    90,992.62x = 125,523.03 × 59,149.90
  4. Step 4: Simplify right side
    90,992.62x = 7,424,674,672.20
  5. Step 5: Solve for x
    x = 7,424,674,672.20/90,992.62
  6. Step 6: Final answer
    x = 81,596.45

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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.