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Finding the Fourth Proportional to 97,791.68, 134,949.02 and 55,349.30

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Solution

The fourth proportional to 97,791.68, 134,949.02 and 55,349.30 is: 76,380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,791.68 : 134,949.02 = 55,349.30 : x
  2. Step 2: Convert to fraction form
    97,791.68/134,949.02 = 55,349.30/x
  3. Step 3: Cross multiply
    97,791.68x = 134,949.02 × 55,349.30
  4. Step 4: Simplify right side
    97,791.68x = 7,469,333,792.69
  5. Step 5: Solve for x
    x = 7,469,333,792.69/97,791.68
  6. Step 6: Final answer
    x = 76,380.05

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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.