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Finding the Fourth Proportional to 201,008.70, 301,521.42 and 67,902.48

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Solution

The fourth proportional to 201,008.70, 301,521.42 and 67,902.48 is: 101,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,008.70 : 301,521.42 = 67,902.48 : x
  2. Step 2: Convert to fraction form
    201,008.70/301,521.42 = 67,902.48/x
  3. Step 3: Cross multiply
    201,008.70x = 301,521.42 × 67,902.48
  4. Step 4: Simplify right side
    201,008.70x = 20,474,052,191.12
  5. Step 5: Solve for x
    x = 20,474,052,191.12/201,008.70
  6. Step 6: Final answer
    x = 101,856.55

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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.