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Finding the Fourth Proportional to 97,791.90, 134,956.02 and 55,349.52

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Solution

The fourth proportional to 97,791.90, 134,956.02 and 55,349.52 is: 76,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,791.90 : 134,956.02 = 55,349.52 : x
  2. Step 2: Convert to fraction form
    97,791.90/134,956.02 = 55,349.52/x
  3. Step 3: Cross multiply
    97,791.90x = 134,956.02 × 55,349.52
  4. Step 4: Simplify right side
    97,791.90x = 7,469,750,928.11
  5. Step 5: Solve for x
    x = 7,469,750,928.11/97,791.90
  6. Step 6: Final answer
    x = 76,384.15

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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.