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Finding the Fourth Proportional to 201,027.30, 301,431.60 and 82,710.60

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Solution

The fourth proportional to 201,027.30, 301,431.60 and 82,710.60 is: 124,020.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,027.30 : 301,431.60 = 82,710.60 : x
  2. Step 2: Convert to fraction form
    201,027.30/301,431.60 = 82,710.60/x
  3. Step 3: Cross multiply
    201,027.30x = 301,431.60 × 82,710.60
  4. Step 4: Simplify right side
    201,027.30x = 24,931,588,494.96
  5. Step 5: Solve for x
    x = 24,931,588,494.96/201,027.30
  6. Step 6: Final answer
    x = 124,020.91

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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.