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Finding the Fourth Proportional to 118,285.89, 177,521.53 and 82,514.54

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Solution

The fourth proportional to 118,285.89, 177,521.53 and 82,514.54 is: 123,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,285.89 : 177,521.53 = 82,514.54 : x
  2. Step 2: Convert to fraction form
    118,285.89/177,521.53 = 82,514.54/x
  3. Step 3: Cross multiply
    118,285.89x = 177,521.53 × 82,514.54
  4. Step 4: Simplify right side
    118,285.89x = 14,648,107,440.56
  5. Step 5: Solve for x
    x = 14,648,107,440.56/118,285.89
  6. Step 6: Final answer
    x = 123,836.47

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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.