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Finding the Fourth Proportional to 198,120.84, 273,405.84 and 107,476.86

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Solution

The fourth proportional to 198,120.84, 273,405.84 and 107,476.86 is: 148,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,120.84 : 273,405.84 = 107,476.86 : x
  2. Step 2: Convert to fraction form
    198,120.84/273,405.84 = 107,476.86/x
  3. Step 3: Cross multiply
    198,120.84x = 273,405.84 × 107,476.86
  4. Step 4: Simplify right side
    198,120.84x = 29,384,801,188.86
  5. Step 5: Solve for x
    x = 29,384,801,188.86/198,120.84
  6. Step 6: Final answer
    x = 148,317.57

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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.