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Finding the Fourth Proportional to 197,658.88, 272,772.48 and 108,229.12

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Solution

The fourth proportional to 197,658.88, 272,772.48 and 108,229.12 is: 149,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,658.88 : 272,772.48 = 108,229.12 : x
  2. Step 2: Convert to fraction form
    197,658.88/272,772.48 = 108,229.12/x
  3. Step 3: Cross multiply
    197,658.88x = 272,772.48 × 108,229.12
  4. Step 4: Simplify right side
    197,658.88x = 29,521,925,470.62
  5. Step 5: Solve for x
    x = 29,521,925,470.62/197,658.88
  6. Step 6: Final answer
    x = 149,357.95

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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.