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Finding the Fourth Proportional to 256,066.73, 383,883.18 and 106,213.49

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Solution

The fourth proportional to 256,066.73, 383,883.18 and 106,213.49 is: 159,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,066.73 : 383,883.18 = 106,213.49 : x
  2. Step 2: Convert to fraction form
    256,066.73/383,883.18 = 106,213.49/x
  3. Step 3: Cross multiply
    256,066.73x = 383,883.18 × 106,213.49
  4. Step 4: Simplify right side
    256,066.73x = 40,773,570,380.68
  5. Step 5: Solve for x
    x = 40,773,570,380.68/256,066.73
  6. Step 6: Final answer
    x = 159,230.26

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1.5x scale

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.