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Finding the Fourth Proportional to 201,105.78, 301,654.04 and 101,239.16

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Solution

The fourth proportional to 201,105.78, 301,654.04 and 101,239.16 is: 151,856.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,105.78 : 301,654.04 = 101,239.16 : x
  2. Step 2: Convert to fraction form
    201,105.78/301,654.04 = 101,239.16/x
  3. Step 3: Cross multiply
    201,105.78x = 301,654.04 × 101,239.16
  4. Step 4: Simplify right side
    201,105.78x = 30,539,201,620.21
  5. Step 5: Solve for x
    x = 30,539,201,620.21/201,105.78
  6. Step 6: Final answer
    x = 151,856.41

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1.5x scale

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.