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Finding the Fourth Proportional to 91,596.60, 137,441.84 and 43,619.48

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Solution

The fourth proportional to 91,596.60, 137,441.84 and 43,619.48 is: 65,451.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,596.60 : 137,441.84 = 43,619.48 : x
  2. Step 2: Convert to fraction form
    91,596.60/137,441.84 = 43,619.48/x
  3. Step 3: Cross multiply
    91,596.60x = 137,441.84 × 43,619.48
  4. Step 4: Simplify right side
    91,596.60x = 5,995,140,685.74
  5. Step 5: Solve for x
    x = 5,995,140,685.74/91,596.60
  6. Step 6: Final answer
    x = 65,451.56

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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.