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Finding the Fourth Proportional to 183,404.40, 274,946.60 and 71,161.20

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Solution

The fourth proportional to 183,404.40, 274,946.60 and 71,161.20 is: 106,679.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,404.40 : 274,946.60 = 71,161.20 : x
  2. Step 2: Convert to fraction form
    183,404.40/274,946.60 = 71,161.20/x
  3. Step 3: Cross multiply
    183,404.40x = 274,946.60 × 71,161.20
  4. Step 4: Simplify right side
    183,404.40x = 19,565,529,991.92
  5. Step 5: Solve for x
    x = 19,565,529,991.92/183,404.40
  6. Step 6: Final answer
    x = 106,679.72

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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.