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Finding the Fourth Proportional to 76,610.51, 114,770.86 and 43,354.44

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Solution

The fourth proportional to 76,610.51, 114,770.86 and 43,354.44 is: 64,949.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,610.51 : 114,770.86 = 43,354.44 : x
  2. Step 2: Convert to fraction form
    76,610.51/114,770.86 = 43,354.44/x
  3. Step 3: Cross multiply
    76,610.51x = 114,770.86 × 43,354.44
  4. Step 4: Simplify right side
    76,610.51x = 4,975,826,255.23
  5. Step 5: Solve for x
    x = 4,975,826,255.23/76,610.51
  6. Step 6: Final answer
    x = 64,949.66

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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.