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Finding the Fourth Proportional to 266,618.70, 367,932.87 and 145,759.86

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Solution

The fourth proportional to 266,618.70, 367,932.87 and 145,759.86 is: 201,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,618.70 : 367,932.87 = 145,759.86 : x
  2. Step 2: Convert to fraction form
    266,618.70/367,932.87 = 145,759.86/x
  3. Step 3: Cross multiply
    266,618.70x = 367,932.87 × 145,759.86
  4. Step 4: Simplify right side
    266,618.70x = 53,629,843,620.60
  5. Step 5: Solve for x
    x = 53,629,843,620.60/266,618.70
  6. Step 6: Final answer
    x = 201,148.10

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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.