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Finding the Fourth Proportional to 198,373.82, 273,780.88 and 122,933.66

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Solution

The fourth proportional to 198,373.82, 273,780.88 and 122,933.66 is: 169,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,373.82 : 273,780.88 = 122,933.66 : x
  2. Step 2: Convert to fraction form
    198,373.82/273,780.88 = 122,933.66/x
  3. Step 3: Cross multiply
    198,373.82x = 273,780.88 × 122,933.66
  4. Step 4: Simplify right side
    198,373.82x = 33,656,883,940.18
  5. Step 5: Solve for x
    x = 33,656,883,940.18/198,373.82
  6. Step 6: Final answer
    x = 169,663.94

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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.