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Finding the Fourth Proportional to 335,367.98, 503,051.48 and 135,689.92

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Solution

The fourth proportional to 335,367.98, 503,051.48 and 135,689.92 is: 203,534.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,367.98 : 503,051.48 = 135,689.92 : x
  2. Step 2: Convert to fraction form
    335,367.98/503,051.48 = 135,689.92/x
  3. Step 3: Cross multiply
    335,367.98x = 503,051.48 × 135,689.92
  4. Step 4: Simplify right side
    335,367.98x = 68,259,015,077.08
  5. Step 5: Solve for x
    x = 68,259,015,077.08/335,367.98
  6. Step 6: Final answer
    x = 203,534.68

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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.