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Finding the Fourth Proportional to 335,911.59, 503,938.46 and 111,259.30

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Solution

The fourth proportional to 335,911.59, 503,938.46 and 111,259.30 is: 166,912.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,911.59 : 503,938.46 = 111,259.30 : x
  2. Step 2: Convert to fraction form
    335,911.59/503,938.46 = 111,259.30/x
  3. Step 3: Cross multiply
    335,911.59x = 503,938.46 × 111,259.30
  4. Step 4: Simplify right side
    335,911.59x = 56,067,840,302.68
  5. Step 5: Solve for x
    x = 56,067,840,302.68/335,911.59
  6. Step 6: Final answer
    x = 166,912.49

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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.