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Finding the Fourth Proportional to 201,272.48, 301,890.18 and 68,137.52

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Solution

The fourth proportional to 201,272.48, 301,890.18 and 68,137.52 is: 102,200.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,272.48 : 301,890.18 = 68,137.52 : x
  2. Step 2: Convert to fraction form
    201,272.48/301,890.18 = 68,137.52/x
  3. Step 3: Cross multiply
    201,272.48x = 301,890.18 × 68,137.52
  4. Step 4: Simplify right side
    201,272.48x = 20,570,048,177.55
  5. Step 5: Solve for x
    x = 20,570,048,177.55/201,272.48
  6. Step 6: Final answer
    x = 102,200.00

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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.