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Finding the Fourth Proportional to 266,221.73, 367,400.87 and 145,374.23

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Solution

The fourth proportional to 266,221.73, 367,400.87 and 145,374.23 is: 200,624.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,221.73 : 367,400.87 = 145,374.23 : x
  2. Step 2: Convert to fraction form
    266,221.73/367,400.87 = 145,374.23/x
  3. Step 3: Cross multiply
    266,221.73x = 367,400.87 × 145,374.23
  4. Step 4: Simplify right side
    266,221.73x = 53,410,616,013.70
  5. Step 5: Solve for x
    x = 53,410,616,013.70/266,221.73
  6. Step 6: Final answer
    x = 200,624.56

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1.5x scale

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.