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Finding the Fourth Proportional to 281,608.56, 388,619.76 and 168,458.04

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Solution

The fourth proportional to 281,608.56, 388,619.76 and 168,458.04 is: 232,472.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,608.56 : 388,619.76 = 168,458.04 : x
  2. Step 2: Convert to fraction form
    281,608.56/388,619.76 = 168,458.04/x
  3. Step 3: Cross multiply
    281,608.56x = 388,619.76 × 168,458.04
  4. Step 4: Simplify right side
    281,608.56x = 65,466,123,074.87
  5. Step 5: Solve for x
    x = 65,466,123,074.87/281,608.56
  6. Step 6: Final answer
    x = 232,472.06

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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.