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Finding the Fourth Proportional to 123,086.70, 184,976.28 and 73,175.67

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Solution

The fourth proportional to 123,086.70, 184,976.28 and 73,175.67 is: 109,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,086.70 : 184,976.28 = 73,175.67 : x
  2. Step 2: Convert to fraction form
    123,086.70/184,976.28 = 73,175.67/x
  3. Step 3: Cross multiply
    123,086.70x = 184,976.28 × 73,175.67
  4. Step 4: Simplify right side
    123,086.70x = 13,535,763,223.11
  5. Step 5: Solve for x
    x = 13,535,763,223.11/123,086.70
  6. Step 6: Final answer
    x = 109,969.34

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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.