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Finding the Fourth Proportional to 76,960.55, 115,344.46 and 41,334.32

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Solution

The fourth proportional to 76,960.55, 115,344.46 and 41,334.32 is: 61,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,960.55 : 115,344.46 = 41,334.32 : x
  2. Step 2: Convert to fraction form
    76,960.55/115,344.46 = 41,334.32/x
  3. Step 3: Cross multiply
    76,960.55x = 115,344.46 × 41,334.32
  4. Step 4: Simplify right side
    76,960.55x = 4,767,684,613.20
  5. Step 5: Solve for x
    x = 4,767,684,613.20/76,960.55
  6. Step 6: Final answer
    x = 61,949.72

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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.