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Finding the Fourth Proportional to 245,086.20, 367,629.30 and 161,105.40

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Solution

The fourth proportional to 245,086.20, 367,629.30 and 161,105.40 is: 241,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,086.20 : 367,629.30 = 161,105.40 : x
  2. Step 2: Convert to fraction form
    245,086.20/367,629.30 = 161,105.40/x
  3. Step 3: Cross multiply
    245,086.20x = 367,629.30 × 161,105.40
  4. Step 4: Simplify right side
    245,086.20x = 59,227,065,428.22
  5. Step 5: Solve for x
    x = 59,227,065,428.22/245,086.20
  6. Step 6: Final answer
    x = 241,658.10

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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.