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Finding the Fourth Proportional to 393,199.44, 589,701.96 and 168,534.40

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Solution

The fourth proportional to 393,199.44, 589,701.96 and 168,534.40 is: 252,759.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,199.44 : 589,701.96 = 168,534.40 : x
  2. Step 2: Convert to fraction form
    393,199.44/589,701.96 = 168,534.40/x
  3. Step 3: Cross multiply
    393,199.44x = 589,701.96 × 168,534.40
  4. Step 4: Simplify right side
    393,199.44x = 99,385,066,007.42
  5. Step 5: Solve for x
    x = 99,385,066,007.42/393,199.44
  6. Step 6: Final answer
    x = 252,759.94

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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.