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Finding the Fourth Proportional to 335,893.50, 503,849.97 and 86,575.50

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Solution

The fourth proportional to 335,893.50, 503,849.97 and 86,575.50 is: 129,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,893.50 : 503,849.97 = 86,575.50 : x
  2. Step 2: Convert to fraction form
    335,893.50/503,849.97 = 86,575.50/x
  3. Step 3: Cross multiply
    335,893.50x = 503,849.97 × 86,575.50
  4. Step 4: Simplify right side
    335,893.50x = 43,621,063,077.74
  5. Step 5: Solve for x
    x = 43,621,063,077.74/335,893.50
  6. Step 6: Final answer
    x = 129,865.76

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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.