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Finding the Fourth Proportional to 91,003.60, 136,524.96 and 44,282.80

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Solution

The fourth proportional to 91,003.60, 136,524.96 and 44,282.80 is: 66,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,003.60 : 136,524.96 = 44,282.80 : x
  2. Step 2: Convert to fraction form
    91,003.60/136,524.96 = 44,282.80/x
  3. Step 3: Cross multiply
    91,003.60x = 136,524.96 × 44,282.80
  4. Step 4: Simplify right side
    91,003.60x = 6,045,707,498.69
  5. Step 5: Solve for x
    x = 6,045,707,498.69/91,003.60
  6. Step 6: Final answer
    x = 66,433.72

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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.