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Finding the Fourth Proportional to 126,956.64, 175,193.42 and 73,238.48

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Solution

The fourth proportional to 126,956.64, 175,193.42 and 73,238.48 is: 101,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,956.64 : 175,193.42 = 73,238.48 : x
  2. Step 2: Convert to fraction form
    126,956.64/175,193.42 = 73,238.48/x
  3. Step 3: Cross multiply
    126,956.64x = 175,193.42 × 73,238.48
  4. Step 4: Simplify right side
    126,956.64x = 12,830,899,786.80
  5. Step 5: Solve for x
    x = 12,830,899,786.80/126,956.64
  6. Step 6: Final answer
    x = 101,065.21

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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.