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Finding the Fourth Proportional to 201,108.48, 301,663.52 and 67,989.44

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Solution

The fourth proportional to 201,108.48, 301,663.52 and 67,989.44 is: 101,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,108.48 : 301,663.52 = 67,989.44 : x
  2. Step 2: Convert to fraction form
    201,108.48/301,663.52 = 67,989.44/x
  3. Step 3: Cross multiply
    201,108.48x = 301,663.52 × 67,989.44
  4. Step 4: Simplify right side
    201,108.48x = 20,509,933,793.23
  5. Step 5: Solve for x
    x = 20,509,933,793.23/201,108.48
  6. Step 6: Final answer
    x = 101,984.43

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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.