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Finding the Fourth Proportional to 201,317.80, 301,976.70 and 134,962.60

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Solution

The fourth proportional to 201,317.80, 301,976.70 and 134,962.60 is: 202,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,317.80 : 301,976.70 = 134,962.60 : x
  2. Step 2: Convert to fraction form
    201,317.80/301,976.70 = 134,962.60/x
  3. Step 3: Cross multiply
    201,317.80x = 301,976.70 × 134,962.60
  4. Step 4: Simplify right side
    201,317.80x = 40,755,560,571.42
  5. Step 5: Solve for x
    x = 40,755,560,571.42/201,317.80
  6. Step 6: Final answer
    x = 202,443.90

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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.