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Finding the Fourth Proportional to 76,640.76, 114,960.98 and 24,054.32

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Solution

The fourth proportional to 76,640.76, 114,960.98 and 24,054.32 is: 36,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,640.76 : 114,960.98 = 24,054.32 : x
  2. Step 2: Convert to fraction form
    76,640.76/114,960.98 = 24,054.32/x
  3. Step 3: Cross multiply
    76,640.76x = 114,960.98 × 24,054.32
  4. Step 4: Simplify right side
    76,640.76x = 2,765,308,200.43
  5. Step 5: Solve for x
    x = 2,765,308,200.43/76,640.76
  6. Step 6: Final answer
    x = 36,081.43

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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.