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Finding the Fourth Proportional to 75,976.08, 104,850.72 and 45,770.64

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Solution

The fourth proportional to 75,976.08, 104,850.72 and 45,770.64 is: 63,165.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,976.08 : 104,850.72 = 45,770.64 : x
  2. Step 2: Convert to fraction form
    75,976.08/104,850.72 = 45,770.64/x
  3. Step 3: Cross multiply
    75,976.08x = 104,850.72 × 45,770.64
  4. Step 4: Simplify right side
    75,976.08x = 4,799,084,558.86
  5. Step 5: Solve for x
    x = 4,799,084,558.86/75,976.08
  6. Step 6: Final answer
    x = 63,165.73

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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.