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Finding the Fourth Proportional to 335,074.92, 502,611.36 and 135,393

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Solution

The fourth proportional to 335,074.92, 502,611.36 and 135,393 is: 203,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,074.92 : 502,611.36 = 135,393 : x
  2. Step 2: Convert to fraction form
    335,074.92/502,611.36 = 135,393/x
  3. Step 3: Cross multiply
    335,074.92x = 502,611.36 × 135,393
  4. Step 4: Simplify right side
    335,074.92x = 68,050,059,864.48
  5. Step 5: Solve for x
    x = 68,050,059,864.48/335,074.92
  6. Step 6: Final answer
    x = 203,089.09

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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.