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Finding the Fourth Proportional to 393,245.97, 589,169.12 and 165,039.81

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Solution

The fourth proportional to 393,245.97, 589,169.12 and 165,039.81 is: 247,266.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,245.97 : 589,169.12 = 165,039.81 : x
  2. Step 2: Convert to fraction form
    393,245.97/589,169.12 = 165,039.81/x
  3. Step 3: Cross multiply
    393,245.97x = 589,169.12 × 165,039.81
  4. Step 4: Simplify right side
    393,245.97x = 97,236,358,797.47
  5. Step 5: Solve for x
    x = 97,236,358,797.47/393,245.97
  6. Step 6: Final answer
    x = 247,266.00

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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.