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Finding the Fourth Proportional to 266,451.76, 367,728.96 and 145,611.37

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Solution

The fourth proportional to 266,451.76, 367,728.96 and 145,611.37 is: 200,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,451.76 : 367,728.96 = 145,611.37 : x
  2. Step 2: Convert to fraction form
    266,451.76/367,728.96 = 145,611.37/x
  3. Step 3: Cross multiply
    266,451.76x = 367,728.96 × 145,611.37
  4. Step 4: Simplify right side
    266,451.76x = 53,545,517,654.28
  5. Step 5: Solve for x
    x = 53,545,517,654.28/266,451.76
  6. Step 6: Final answer
    x = 200,957.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.