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Finding the Fourth Proportional to 148,173.99, 204,478.02 and 84,512.85

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Solution

The fourth proportional to 148,173.99, 204,478.02 and 84,512.85 is: 116,626.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,173.99 : 204,478.02 = 84,512.85 : x
  2. Step 2: Convert to fraction form
    148,173.99/204,478.02 = 84,512.85/x
  3. Step 3: Cross multiply
    148,173.99x = 204,478.02 × 84,512.85
  4. Step 4: Simplify right side
    148,173.99x = 17,281,020,232.56
  5. Step 5: Solve for x
    x = 17,281,020,232.56/148,173.99
  6. Step 6: Final answer
    x = 116,626.54

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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.