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Finding the Fourth Proportional to 335,096.82, 502,644.91 and 85,778.42

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Solution

The fourth proportional to 335,096.82, 502,644.91 and 85,778.42 is: 128,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,096.82 : 502,644.91 = 85,778.42 : x
  2. Step 2: Convert to fraction form
    335,096.82/502,644.91 = 85,778.42/x
  3. Step 3: Cross multiply
    335,096.82x = 502,644.91 × 85,778.42
  4. Step 4: Simplify right side
    335,096.82x = 43,116,086,200.84
  5. Step 5: Solve for x
    x = 43,116,086,200.84/335,096.82
  6. Step 6: Final answer
    x = 128,667.55

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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.