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Finding the Fourth Proportional to 79,796.78, 119,614.40 and 51,734.66

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Solution

The fourth proportional to 79,796.78, 119,614.40 and 51,734.66 is: 77,549.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,796.78 : 119,614.40 = 51,734.66 : x
  2. Step 2: Convert to fraction form
    79,796.78/119,614.40 = 51,734.66/x
  3. Step 3: Cross multiply
    79,796.78x = 119,614.40 × 51,734.66
  4. Step 4: Simplify right side
    79,796.78x = 6,188,209,458.36
  5. Step 5: Solve for x
    x = 6,188,209,458.36/79,796.78
  6. Step 6: Final answer
    x = 77,549.62

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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.