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Finding the Fourth Proportional to 361,974.49, 542,626.58 and 134,143.27

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Solution

The fourth proportional to 361,974.49, 542,626.58 and 134,143.27 is: 201,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,974.49 : 542,626.58 = 134,143.27 : x
  2. Step 2: Convert to fraction form
    361,974.49/542,626.58 = 134,143.27/x
  3. Step 3: Cross multiply
    361,974.49x = 542,626.58 × 134,143.27
  4. Step 4: Simplify right side
    361,974.49x = 72,789,702,808.91
  5. Step 5: Solve for x
    x = 72,789,702,808.91/361,974.49
  6. Step 6: Final answer
    x = 201,090.70

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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.