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Finding the Fourth Proportional to 335,800.40, 503,263.20 and 135,957.20

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Solution

The fourth proportional to 335,800.40, 503,263.20 and 135,957.20 is: 203,758.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,800.40 : 503,263.20 = 135,957.20 : x
  2. Step 2: Convert to fraction form
    335,800.40/503,263.20 = 135,957.20/x
  3. Step 3: Cross multiply
    335,800.40x = 503,263.20 × 135,957.20
  4. Step 4: Simplify right side
    335,800.40x = 68,422,255,535.04
  5. Step 5: Solve for x
    x = 68,422,255,535.04/335,800.40
  6. Step 6: Final answer
    x = 203,758.71

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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.