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Finding the Fourth Proportional to 393,183.22, 589,998.82 and 153,265.90

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Solution

The fourth proportional to 393,183.22, 589,998.82 and 153,265.90 is: 229,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,183.22 : 589,998.82 = 153,265.90 : x
  2. Step 2: Convert to fraction form
    393,183.22/589,998.82 = 153,265.90/x
  3. Step 3: Cross multiply
    393,183.22x = 589,998.82 × 153,265.90
  4. Step 4: Simplify right side
    393,183.22x = 90,426,700,146.24
  5. Step 5: Solve for x
    x = 90,426,700,146.24/393,183.22
  6. Step 6: Final answer
    x = 229,986.16

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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.