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Finding the Fourth Proportional to 141,052.92, 194,744.24 and 87,394.88

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Solution

The fourth proportional to 141,052.92, 194,744.24 and 87,394.88 is: 120,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,052.92 : 194,744.24 = 87,394.88 : x
  2. Step 2: Convert to fraction form
    141,052.92/194,744.24 = 87,394.88/x
  3. Step 3: Cross multiply
    141,052.92x = 194,744.24 × 87,394.88
  4. Step 4: Simplify right side
    141,052.92x = 17,019,648,074.80
  5. Step 5: Solve for x
    x = 17,019,648,074.80/141,052.92
  6. Step 6: Final answer
    x = 120,661.44

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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.