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Finding the Fourth Proportional to 361,817.30, 542,773.94 and 134,081.34

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Solution

The fourth proportional to 361,817.30, 542,773.94 and 134,081.34 is: 201,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,817.30 : 542,773.94 = 134,081.34 : x
  2. Step 2: Convert to fraction form
    361,817.30/542,773.94 = 134,081.34/x
  3. Step 3: Cross multiply
    361,817.30x = 542,773.94 × 134,081.34
  4. Step 4: Simplify right side
    361,817.30x = 72,775,857,192.28
  5. Step 5: Solve for x
    x = 72,775,857,192.28/361,817.30
  6. Step 6: Final answer
    x = 201,139.79

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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.