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Finding the Fourth Proportional to 95,456.80, 131,722.32 and 57,728.80

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Solution

The fourth proportional to 95,456.80, 131,722.32 and 57,728.80 is: 79,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,456.80 : 131,722.32 = 57,728.80 : x
  2. Step 2: Convert to fraction form
    95,456.80/131,722.32 = 57,728.80/x
  3. Step 3: Cross multiply
    95,456.80x = 131,722.32 × 57,728.80
  4. Step 4: Simplify right side
    95,456.80x = 7,604,171,466.82
  5. Step 5: Solve for x
    x = 7,604,171,466.82/95,456.80
  6. Step 6: Final answer
    x = 79,660.87

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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.