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Finding the Fourth Proportional to 266,219.54, 367,383.72 and 145,361.86

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Solution

The fourth proportional to 266,219.54, 367,383.72 and 145,361.86 is: 200,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,219.54 : 367,383.72 = 145,361.86 : x
  2. Step 2: Convert to fraction form
    266,219.54/367,383.72 = 145,361.86/x
  3. Step 3: Cross multiply
    266,219.54x = 367,383.72 × 145,361.86
  4. Step 4: Simplify right side
    266,219.54x = 53,403,580,872.92
  5. Step 5: Solve for x
    x = 53,403,580,872.92/266,219.54
  6. Step 6: Final answer
    x = 200,599.78

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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.