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Finding the Fourth Proportional to 117,805.33, 176,676.10 and 80,358.42

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Solution

The fourth proportional to 117,805.33, 176,676.10 and 80,358.42 is: 120,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,805.33 : 176,676.10 = 80,358.42 : x
  2. Step 2: Convert to fraction form
    117,805.33/176,676.10 = 80,358.42/x
  3. Step 3: Cross multiply
    117,805.33x = 176,676.10 × 80,358.42
  4. Step 4: Simplify right side
    117,805.33x = 14,197,412,046.87
  5. Step 5: Solve for x
    x = 14,197,412,046.87/117,805.33
  6. Step 6: Final answer
    x = 120,515.87

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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.