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Finding the Fourth Proportional to 251,715.92, 347,361.36 and 136,996.88

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Solution

The fourth proportional to 251,715.92, 347,361.36 and 136,996.88 is: 189,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,715.92 : 347,361.36 = 136,996.88 : x
  2. Step 2: Convert to fraction form
    251,715.92/347,361.36 = 136,996.88/x
  3. Step 3: Cross multiply
    251,715.92x = 347,361.36 × 136,996.88
  4. Step 4: Simplify right side
    251,715.92x = 47,587,422,552.56
  5. Step 5: Solve for x
    x = 47,587,422,552.56/251,715.92
  6. Step 6: Final answer
    x = 189,052.10

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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.