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Finding the Fourth Proportional to 303,742.20, 456,002.10 and 161,700.60

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Solution

The fourth proportional to 303,742.20, 456,002.10 and 161,700.60 is: 242,757.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,742.20 : 456,002.10 = 161,700.60 : x
  2. Step 2: Convert to fraction form
    303,742.20/456,002.10 = 161,700.60/x
  3. Step 3: Cross multiply
    303,742.20x = 456,002.10 × 161,700.60
  4. Step 4: Simplify right side
    303,742.20x = 73,735,813,171.26
  5. Step 5: Solve for x
    x = 73,735,813,171.26/303,742.20
  6. Step 6: Final answer
    x = 242,757.88

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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.